Yealink MeetingBar A25-BYOM All-in-One Video Collaboration Bar for Focus Rooms

The Yealink MeetingBar A25-BYOM is a purpose-built room collaboration appliance for organizations that want a compact meeting space to behave like a professional video room while allowing users to conduct meetings from their own laptops. Instead of assembling separate cameras, microphones, speakers, USB extenders and mounting components, the A25-BYOM consolidates the essential room peripherals into a single bar. The result is a cleaner installation, fewer cable paths and a more repeatable room standard for offices, branches, executive spaces, project rooms and customer-facing collaboration areas.

Its defining visual architecture is a three-camera system built around one ultra-wide camera and two tele cameras. The ultra-wide lens reaches a 151° horizontal field of view, which is particularly valuable in narrow focus rooms where participants sit close to the display. All three cameras use 8MP sensors and support 4K-class capture. Camera functions include Auto Framing, Speaker Tracking, IntelliFocus, Picture in Picture and Video Fence. For privacy-conscious environments, an electric lens cover provides a visible physical privacy mechanism rather than relying only on software controls.

Audio is equally integrated. The bar combines an eight-element MEMS microphone array with a 10W forward-facing speaker, full-duplex processing, acoustic echo cancellation, automatic gain control and noise suppression. Yealink specifies voice pickup up to 5 metres, with a 3.5-metre high-quality pickup distance. This makes the unit best aligned with focus and huddle spaces rather than large boardrooms that require distributed microphones.

For BYOM operation, a single USB-C connection to the user’s computer can expose the room’s audio and video resources while supporting content sharing. The appliance also provides Gigabit Ethernet, Wi-Fi 6, Bluetooth 5.1 and HDMI output. Remote administration can be handled through Yealink web and device-management platforms, giving IT teams a path to configuration, firmware maintenance and troubleshooting without visiting every room.

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Instant Specifications & Procurement Fact Rail

Before issuing a purchase request, buyers should distinguish A25-BYOM from the native-room MeetingBar A25 because accessory and platform behavior differs. The BYOM variant is centered on laptop-driven conferencing and does not support the CTP25 touch console, WPP30 or PA20 wireless BYOD accessories. It supports direct USB-C wired content sharing and BYOM, YeaCast wireless sharing, VCR11 remote control and local interface management. This distinction matters when standardizing rooms: selecting an accessory designed for the native A25 may create an avoidable bill-of-materials mismatch for the A25-BYOM.

Operational Product Architecture & Overview

The architecture starts with the room geometry. Conventional single-lens video bars can struggle when a small room places people very close to the camera. A25-BYOM addresses that condition with an ultra-wide camera whose 151° horizontal field of view is complemented by two tele cameras. This combination gives the system the raw visual coverage needed to include people at the edges while retaining the ability to present tighter participant views. Nine camera preset positions are supported, and the stated depth of field is 0.4 to 2.5 metres. Maximum camera resolution is 3840 × 2160 at up to 30 frames per second, while output modes also include 1080p at 60 frames per second.

The camera subsystem is not only about resolution. Auto Framing can adjust composition as participants join or leave; Speaker Tracking can direct attention toward the person speaking; IntelliFocus can create focused portrait views; Picture in Picture supports contextual composition; and Video Fence helps define the visual meeting area. These functions are useful in rooms where people cannot spend time manually adjusting a camera before each call. The electric lens cap adds a physical privacy layer that is immediately understandable to users.

The audio subsystem uses eight MEMS microphones. Yealink specifies a 5-metre pickup distance and a 3.5-metre high-quality pickup distance, with a 72 dB signal-to-noise ratio at 1 kHz. Full duplex enables both sides of a conversation to speak naturally, while acoustic echo cancellation and automatic gain control help manage room playback and varying speaker levels. The 10W speaker is rated for a maximum 90 dB SPL at one metre and covers a 100 Hz to 16 kHz frequency response. These characteristics suit compact collaboration spaces where the objective is intelligible speech rather than high-output room reinforcement.

Connectivity is designed to keep the deployment self-contained. The appliance provides USB Type-A and Type-C connections, a USB 3.0 Type-C path for content input and BYOM video output, Gigabit Ethernet, a Yealink VCH port, HDMI output, 3.5 mm line output, power, a security lock slot and reset access. HDMI output can reach 4K30 and supports CEC. USB-C content input can reach 4K30, including 1080p60 formats, while BYOM video output is specified up to 1080p30. Buyers should therefore separate local content-sharing resolution from the camera/peripheral stream exposed to a laptop when planning user expectations.

Network connectivity includes dual-band Wi-Fi 6 with 2×2 MIMO, Bluetooth 5.1, IPv4/IPv6, DHCP or static addressing and HTTPS web access. Remote administration through the Yealink HTTPS web portal, Yealink Device Management Platform or Yealink Management Cloud Service supports centralized configuration and firmware operations. This matters when a company plans ten, fifty or hundreds of similarly configured rooms: repeatability and remote visibility can reduce site visits and configuration drift.

Procurement friction often appears around room size, accessory assumptions and laptop compatibility rather than the headline camera specification. A buyer should confirm that the target laptop fleet can provide the required USB-C data behavior, that the room display accepts the intended HDMI format, and that the physical mounting position gives the ultra-wide camera a useful view rather than an obstructed one. Expansion microphones are not supported, so a room that exceeds the intended pickup envelope should be redesigned around a larger collaboration platform rather than attempting to stretch this model beyond its design target.

Enterprise Business Outcomes & Value Analysis

Key Hardware & Software Highlights

Technical Specifications Ledger

Configuration & Sizing Worksheet

1. Workload and room-scale estimation

Begin with the physical room rather than the number of features. Record room width, depth, table dimensions, maximum seated participants, nearest and farthest seating positions, display size and mounting height. The A25-BYOM is intended for focus and huddle rooms, and its 151° field of view is most valuable when seating spreads laterally close to the display. Compare the farthest speaker position with the 5 m maximum pickup distance and, preferably, keep regular speakers within the 3.5 m high-quality pickup envelope. Because external expansion microphones are not supported, a room that needs microphones farther down a long table is a signal to evaluate a larger platform.

2. Environmental and mounting requirements

The bar measures 570 × 80 × 65 mm. Confirm that the selected wall or display position leaves space for cable bends, ventilation and access to service connections. A wall mount is supplied. TV mounts and a tabletop mount are optional, so the RFQ should name the preferred installation method. Operating temperature is 0–40°C with 10–95% humidity. In Kampala and other warm environments, meeting rooms should have adequate ventilation or conditioning, especially when the display and multiple laptops add heat.

3. Power, cabling and display compatibility

The standard package includes a power adapter, HDMI cable, network cable, USB-A-to-C cable, USB-C-to-C cable, wall mount, cable cover, quick-start guide and VCR11 remote. Verify actual package contents on the quotation because regional bundles can change. Confirm an AC outlet near the mounting position and plan a clean path for HDMI to the room display, Ethernet to the network outlet and USB-C to the user position. Where users sit away from the display wall, test the planned USB cable length rather than assuming any long passive cable will maintain the required data performance.

4. Platform and licensing review

A25-BYOM is designed around bring-your-own-meeting operation. The conferencing application and service entitlement normally reside on the user’s computer rather than being licensed as a dedicated native room account on this variant. Procurement teams should nevertheless confirm their Microsoft Teams, Zoom, Webex or other service licensing independently. Also confirm endpoint-management requirements, firewall rules, HTTPS access policies and whether Yealink cloud or on-premises management will be used.

5. Quote preparation checklist

A complete request should include quantity, delivery city, room count, display count and model, mounting preference, laptop operating systems, expected meeting applications, wired or wireless network preference, security requirements, desired warranty term, installation requirement, configuration/staging requirement and target deployment date. For multi-site projects, include a room schedule showing each location. This allows FourTeck to validate the bill of materials before commercial approval and reduces late accessory changes.

Deployment Scenarios & Industry Use Cases

Large Enterprise and Multi-Site Offices

Enterprises often have many small rooms that are heavily used but cannot justify the complexity of a large-room codec, separate microphones and a control panel. A25-BYOM can serve as a repeatable standard for these spaces. The same mounting height, Ethernet policy, USB-C user lead and display connection can be documented across branches. Remote management then gives IT a common path for firmware and configuration tasks. The principal design rule is to keep room geometry within the audio envelope and to avoid assuming that accessories from the native A25 automatically work with A25-BYOM.

Financial and Banking Institutions

Banks and financial organizations may use focus rooms for internal reviews, branch coordination, vendor calls and specialist consultations. The electric privacy cover, encrypted storage options, protected device identity and authenticated device access are relevant to controlled environments, while a wired Ethernet deployment can align with managed network practices. Security teams should validate VLAN placement, outbound management connectivity, firmware governance and laptop meeting policies before rollout. Physical lock provisions can also be incorporated into shared or semi-public branch locations.

Education and Campus Networks

Universities, colleges and training centers can deploy the bar in faculty collaboration rooms, interview spaces, small tutorial rooms and administrative offices. The wide field of view helps when a compact room seats several people near the screen. Laptop-driven meetings are useful when staff use different conferencing services. Campus IT should standardize USB-C adapters for older laptops, confirm network authentication behavior and select mounting positions that protect the bar from accidental handling.

Government and Public-Sector Procurement

Public-sector deployments often require traceable bills of materials, clear warranty terms and consistent device baselines. The A25-BYOM can be specified by exact model, mounting method and included cable set. Procurement documents should distinguish confirmed manufacturer specifications from project-specific requirements, define acceptance testing, record asset serial numbers and identify the party responsible for firmware configuration. Where highly restricted meeting environments apply, the organization’s own information-security authority should approve network connectivity and management settings before commissioning.

Technical Deep Dive: Imaging and Hardware Engine Architecture

A25-BYOM’s imaging design is differentiated by using three cameras instead of relying on one sensor with digital cropping alone. The ultra-wide lens is specified at 182° diagonal, 151° horizontal and 81° vertical field of view. Each of the two tele cameras is specified at 93.5° diagonal, 84.4° horizontal and 53.1° vertical. Each camera uses an 8MP sensor. In practical terms, the wide lens establishes room context while the tele lenses provide additional source imagery for tighter views. Electronic gimbal behavior and camera presets avoid the moving mechanical assemblies associated with traditional pan-tilt-zoom cameras.

The maximum camera resolution is 3840 × 2160 at 30 fps, and the bar can output 1080p60 in supported paths. However, procurement teams should not equate sensor resolution with the resolution a remote participant always receives. Conferencing-client policy, laptop USB behavior, network bandwidth and service-side limits can reduce the actual transmitted stream. Yealink specifies a bandwidth requirement of 10 Mbps or more for the device’s high-resolution use case. Network teams should plan additional headroom and quality-of-service policies according to their chosen conferencing service.

Audio processing is integrated into the same appliance. Eight microphones sample at 48 kHz/32-bit, with full-duplex processing, acoustic echo cancellation and automatic gain control. This integration allows the device to coordinate speaker playback and microphone capture rather than forcing a laptop to reconcile unrelated USB peripherals. The result is a more deterministic room design, but acoustic performance still depends on the space: hard glass walls, bare floors, HVAC noise and poor speaker placement can degrade any conferencing system. Room treatment remains a valid part of professional deployment.

Technical Deep Dive: Software Ecosystem, Firmware Security & Operational Control

The device exposes management through a secure web portal and Yealink device-management services. Administrators can perform configuration, firmware upgrades, factory resets, configuration import/export and system-log export. These capabilities support lifecycle operations from staging through troubleshooting. For larger fleets, a controlled configuration template is preferable to ad-hoc room-by-room setup. IT teams can document network parameters, sleep settings, output resolution, camera behavior and management enrollment as a standard baseline.

Security controls listed by Yealink include AES-128/AES-256 full-disk encryption options, symmetric-key and PKI data-encryption mechanisms, device attestation for identity, authenticated device access and key protection through Arm TrustZone and RPMP. These are platform capabilities rather than a substitute for enterprise governance. A deployment should still define administrator credentials, firmware approval, management-plane access, certificate handling, network segmentation and decommissioning procedures. Organizations with regulated data should perform their own product-security review before connecting the appliance to production networks.

The BYOM workflow also changes the security boundary. The room bar provides camera, microphone, speaker and sharing resources, but the meeting client runs on a user’s computer. That means endpoint security, conferencing-client patching and user authentication remain part of the laptop management program. This division can be advantageous for organizations that already manage laptops rigorously and prefer not to create dedicated room accounts for every focus space.

Technical Deep Dive: Availability, Redundancy & Recovery

A compact collaboration bar is not a clustered server, so high availability is achieved through deployment discipline rather than active/standby hardware inside one room. Standardize spare cables, keep a documented replacement procedure and maintain at least one validated spare unit for critical multi-site estates. Because camera, microphones and speaker are integrated, replacing the bar can restore several room functions at once, which can shorten mean time to recovery compared with troubleshooting several independent peripherals.

Network resilience should be planned at the site level. Gigabit Ethernet is usually the preferred primary path in managed rooms because it is predictable and easy to monitor, while Wi-Fi 6 offers deployment flexibility where policy permits. A building UPS can protect the room display, network switch and bar from brief power disturbances; the bar itself does not provide dual power supplies. Recovery documentation should record configuration export procedures, firmware versions, mount removal steps, cable labels and asset identifiers.

Disaster recovery for collaboration rooms is ultimately about restoring communication capability quickly. A user can fall back to the laptop’s built-in camera and audio if the room bar is unavailable, while IT replaces or reconfigures the appliance. This graceful fallback is one operational advantage of a BYOM room. For executive or business-critical spaces, maintain a tested spare, pre-stage configuration where possible and include replacement logistics in the support agreement.

Pre-Purchase Buyer Gap Checklist

Is this the same as MeetingBar A25? No. A25-BYOM is a specific variant centered on laptop-driven meetings. The native MeetingBar A25 supports a broader set of native-room and accessory capabilities. Confirm the exact SKU on the quotation.

Are expansion microphones supported? No. If the room needs distributed microphones, select a platform designed for a larger room rather than planning to add expansion mics later.

Does every A25 accessory work? No. Manufacturer compatibility information shows that CTP25, WPP30 and PA20 are not supported on A25-BYOM. VCR11 is supported. Accessory compatibility should be validated by exact model before purchase.

Is 4K guaranteed in every remote call? No. The cameras and local sharing paths support high resolutions, but the final remote stream depends on BYOM output limits, the laptop, meeting application, service policy and network. The A25-BYOM USB BYOM video output is specified up to 1080p30.

What hidden licensing should be considered? The room bar itself does not eliminate conferencing-service subscriptions. Because meetings are laptop-driven, users or organizations need appropriate entitlements for their chosen services. Device-management services may also have commercial terms depending on the management architecture selected.

Will USB-C work with every laptop? USB-C is a connector shape, not a guarantee of identical capabilities. Validate the corporate laptop fleet, operating systems, drivers, adapters and any docking stations. Pilot testing with representative laptops is recommended before a large rollout.

What about rack space? This is a room bar, not a rack appliance. The relevant physical checks are wall/display mounting, the 570 × 80 × 65 mm body, cable bend clearance, nearby power, HDMI path and user USB-C cable reach.

What is the power and heat impact? Yealink publishes thermal output of 38 BTU/hr idle and 58 BTU/hr in a meeting. Include the display and other room equipment when calculating total heat load.

Can it be standardized across vendors and meeting services? BYOM reduces dependency on one meeting application because the user’s laptop hosts the client. Compatibility still depends on whether the laptop recognizes the bar correctly as room peripherals and whether the chosen application supports those devices.

Uganda Procurement & Delivery Logistics

For Uganda projects, FourTeck can structure the quotation around the exact room requirement rather than supplying an isolated device without deployment context. A useful procurement request identifies the A25-BYOM model, quantity, destination, mounting preference, desired warranty term and whether staging or installation assistance is required. For multi-room projects, a room-by-room schedule helps separate identical focus rooms from spaces that should use a larger video system.

Order processing normally begins after commercial terms and bill of materials are approved. Availability and delivery timing should be confirmed on the current quotation because enterprise hardware lead times can vary by quantity, accessory mix and supply route. Buyers should avoid basing project dates on generic online stock indicators. For phased rollouts, quantities can be grouped by site so deployment teams receive consistent kits and cable sets.

Pre-configuration can include agreed network settings, firmware validation, basic device naming and configuration documentation where included in the project scope. For organizations with strict change control, staging can be performed against an approved baseline before shipment. Acceptance testing at site should verify display output, camera framing, microphone pickup, speaker playback, USB-C BYOM behavior, network connectivity and remote management enrollment.

Local Coverage Matrix

For locations outside these hubs, delivery planning can be incorporated into the quotation. Provide the final destination and any site-access constraints so logistics can be evaluated before the purchase order. Multi-site organizations should nominate a central technical owner who can approve the room standard and acceptance checklist across all locations.

Cross-Border & Regional Supply Chains

Regional organizations can coordinate similar collaboration-room standards across East Africa, the Gulf and broader African operations. Use FourTeck Uganda for Uganda requirements, FourTeck Kenya for Kenya, FourTeck Africa for broader African projects, FourTeck UAE for UAE procurement and FourTeck Kuwait for Kuwait. Cross-border projects should standardize model numbers and room designs while allowing for country-specific commercial terms, delivery routes, taxes and warranty processes.

For multinational rollouts, request a common technical bill of materials first, then validate local supply by country. This reduces the risk of one office receiving a native A25 while another receives A25-BYOM under an ambiguous description. Asset registers should record serial number, site, room, firmware baseline and warranty start information for each unit.

Related Products & Internal Procurement Paths

Organizations building a wider collaboration estate may also evaluate other Yealink solutions in Uganda alongside the A25-BYOM. Compact rooms that require native room-platform operation should compare the standard MeetingBar A25, while larger spaces may require MeetingBar models with longer audio reach and microphone expansion. Desk-based users can be standardized on Yealink business communications solutions, and meeting-room projects should include suitable displays, network switching, UPS protection and structured cabling in the wider bill of materials.

Mounting is an important related decision. The wall mount is included, while TV and tabletop mounting options are additional. Buyers should request the correct mounting accessory at the same time as the bar rather than discovering after delivery that the room design requires a different installation method. For standardized rollouts, keeping the same mount, cable lengths and user connection position across rooms simplifies support documentation.

FourTeck Technical Service Capabilities

A collaboration-room project benefits from engineering validation before shipment. FourTeck can review the requested model against room size, intended meeting workflow, mounting approach and accessory list so obvious compatibility issues are identified before the order is finalized. Bill-of-materials verification is particularly important with A25-BYOM because some accessories associated with the broader A25 family are not compatible with this variant.

Staging services can be scoped for projects that need a repeatable baseline. Typical tasks may include visual inspection, firmware validation, agreed configuration, device naming and documentation before dispatch. The exact staging scope should be written into the quotation or project statement so both sides have a clear acceptance point.

Post-sales support can assist with deployment questions, warranty coordination and fault isolation. For efficient support, retain the purchase reference, serial number, firmware version, network context and a clear description of symptoms. Where a fault appears only with a particular laptop or conferencing application, include that endpoint model and software version because BYOM troubleshooting crosses both the room device and the user computer.

Extended Technical FAQ

1. What type of room is Yealink MeetingBar A25-BYOM designed for?

It is designed primarily for focus and huddle rooms. The 151° horizontal field of view helps cover participants sitting close to the display, while the microphone system provides up to 5 m pickup with a 3.5 m high-quality pickup distance. Room geometry matters more than a simple seat count. A long room with participants far from the bar can be a poor fit even if only a few people attend. Because expansion microphones are not supported, buyers should move to a larger-room architecture when the intended table length exceeds the integrated audio design.

2. How does BYOM work on the A25-BYOM?

BYOM means the user’s computer hosts the meeting application while the room bar supplies professional camera, microphone and speaker resources. A direct USB-C connection provides the main user path and can also support content sharing. This is useful for organizations that use several meeting services or prefer users to authenticate on their managed laptops. Before deployment, test representative laptops, operating systems and docks. USB-C connector compatibility alone does not guarantee identical behavior, especially where adapters, docking stations or long third-party cables are involved.

3. Does A25-BYOM support the CTP25 touch console or WPP30?

No. Yealink’s compatibility table for A25-BYOM shows that CTP25, WPP30 and PA20 are not supported on this variant. The VCR11 remote is supported. This is one of the most important purchasing distinctions between A25-BYOM and the standard MeetingBar A25. If the room design specifically requires a touch console, native Teams/Zoom room operation or WPP30/PA20 workflows, the procurement team should review the standard A25 or another appropriate MeetingBar configuration instead of assuming those accessories can be added after purchase.

4. What camera quality should remote users expect?

The device uses three 8MP cameras with 4K-class capture and supports a maximum 3840 × 2160 resolution at 30 fps. That does not mean every remote participant receives a 4K stream. In BYOM operation, the USB video output is specified up to 1080p30, and the meeting service can impose additional limits based on application settings, subscription, network conditions and remote endpoint capabilities. The practical value of the triple-camera design is therefore not only pixel count; it is the wide 151° room coverage and framing functions that improve composition in compact spaces.

5. What network connectivity is available?

A25-BYOM provides 10/100/1000 Mbps Ethernet and dual-band Wi-Fi 6 with 2×2 MIMO, plus Bluetooth 5.1. It supports IPv4/IPv6, DHCP or static IP and HTTPS web access. In managed enterprise rooms, wired Ethernet is commonly preferred for predictable performance and troubleshooting, but Wi-Fi can be useful where cabling is difficult and policy permits. Network teams should determine VLAN placement, DHCP reservations or static addressing, firewall rules, management access and firmware-update policy before a large deployment rather than configuring each room independently.

6. What security and privacy capabilities are built in?

Published capabilities include AES-128/AES-256 full-disk encryption options, symmetric-key and PKI data encryption, device attestation, authenticated device access and key protection using Arm TrustZone and RPMP. The camera also has an electric privacy cover that provides a visible physical privacy mechanism. These controls should be incorporated into the organization’s broader security architecture. They do not replace strong administrator credentials, network segmentation, controlled firmware processes, endpoint security on BYOM laptops, asset management or an internal security assessment where regulated or sensitive meetings are involved.

7. What comes in the standard package?

The manufacturer datasheet lists the A25-BYOM bar, power adapter with a 3.5 m lead, 1.8 m HDMI cable, 3 m network cable, 3 m USB-A-to-C cable, 1.8 m USB-C-to-C cable, wall mount, cable cover, quick-start guide and VCR11 remote. Package contents can be subject to regional or revision changes, so the commercial quotation should remain the final reference for what is supplied. Optional TV and tabletop mounting hardware should be requested separately when the installation design does not use the included wall mount.

8. What warranty is included and how should replacement be planned?

Yealink states a standard two-year limited hardware warranty, with extended warranties available at the time of hardware purchase. For a business-critical rollout, procurement teams should decide whether the standard term is sufficient and include any extended coverage in the initial request. Warranty coverage does not eliminate the operational delay of shipping and replacement, so larger estates may benefit from holding a spare device. Keep serial numbers, proof of purchase, site assignment and firmware information in the asset register to make fault diagnosis and warranty processing more efficient.

9. Can the device be remotely configured and updated?

Yes. Yealink documents management through its HTTPS web portal, Device Management Platform and Management Cloud Service. Available operational functions include automatic configuration, firmware upgrade, factory reset, configuration import/export and system-log export. Organizations should decide which management method is approved, who owns administrator credentials and how firmware changes are tested before broad rollout. A staged update process is useful for larger estates: validate a new firmware release on a small set of rooms, confirm BYOM behavior with representative laptops and meeting clients, then expand deployment according to change-control policy.

10. What information should be supplied for an accurate Uganda quotation?

Provide the exact model name A25-BYOM, quantity, delivery city, room dimensions, approximate seat count, mounting preference, display model or interface, laptop types, primary meeting applications, network preference, desired warranty term and required services such as staging or installation. If several rooms differ, provide a room schedule instead of one generic description. Mention any deadline and whether delivery will be centralized or split among Kampala, Entebbe, Jinja, Mbarara, Gulu or other locations. A complete technical request allows the supplier to validate accessories and avoid substitutions that change the intended BYOM workflow.

Plan Your Yealink A25-BYOM Deployment in Uganda

For a reliable procurement decision, match the bar to the room rather than purchasing on camera resolution alone. Confirm the 5 m pickup limit, preferred 3.5 m high-quality audio zone, 151° camera coverage, mounting position, USB-C laptop compatibility, network policy and exact accessory list. A25-BYOM is especially effective when the organization wants a professional focus-room camera and audio system while keeping the meeting application on the user’s laptop. For larger rooms, native room-platform requirements or expansion-microphone needs, request an alternative design rather than forcing the A25-BYOM outside its intended operating envelope.

FourTeck can prepare a Uganda quotation that includes the correct model, mounting options, warranty selection, delivery requirements and technical services. Multi-site projects can also be reviewed as a standardized room package so each location receives a consistent deployment baseline.

Request a Yealink A25-BYOM Quote