Zoom Phone Certified Hardware

The table below provides the list of supported phone devices for Zoom Phone. You can also see a list of supported features. Before you add devices to Zoom Phone, see an overview of the provisioning process.

Requirements for using Zoom Phone Certified Hardware

• Desk phones must support TLSv1.2 to work with Zoom Phone.
• You must have the latest firmware version listed below for your device to work properly. Click the firmware version in the tables below to download it. Starting October 2021, the Firmware supported column states the release date of the firmware.
• To see firewall rules for zero-touch provisioning, refer to the firewall rules for Zoom Phone.

Encryption

Zoom Phone supports secure voice calls for connections between the Zoom Cloud and the Zoom desktop app, mobile app, web browser/app, and supported SIP devices. During call setup, Zoom Phone uses SIP over TLS 1.2 with Advanced Encryption Standard (AES) 256-bit algorithm for these connections. The Zoom desktop app, mobile app, and web browser/app connections encrypt call media to the Zoom Cloud using SRTP with AES 256-bit encryption algorithm. SIP devices configured with SRTP use AES-128 or AES-256 bit algorithm to encrypt call media for connections to the Zoom Cloud, otherwise, unencrypted RTP is used as a fallback.

Important: By default, AES-128-bit encryption is enabled for call media transmitted by supported SIP devices. Admins can upgrade devices to AES-256-bit encryption using the web portal. Fax lines may not support full encryption. Learn more about Zoom Phone encryption.

Desk phones

AudioCodes

Notes:

• Some models with certain revision numbers are not supported. Refer to the AudioCodes website for more information.
• For the 450HD, Zoom Phone only supports the generic SIP version. If you have Skype for Business (SfB) firmware, contact AudioCodes support to convert it to generic SIP.

Avaya

Note: The assisted provisioning using the Zoom provisioning URL is not available for Avaya J100 series, so you must use the enrollment code.

Cisco

Notes:

• Only Cisco multi-platform (MPP) phones are supported by Zoom Phone. This is indicated by 3PCC, 3PC, or 3PW after the model number.
• Please carefully review Cisco's documentation for compatible models and firmware conversion from Enterprise to MPP to ensure that the devices are compatible with the required firmware and services.

Grandstream

Due to the enhanced security requirement, the Zoom Phone provision server does not support any endpoints factory certificates with MD5, along with some other limitations. Hence, there are older hardware versions of the listed Grandstream models that might not support Zoom Phone-assisted provisioning.

The following Grandstream devices have been verified to support the required certificates and encryption for Zoom Phone service:

Notes:

• Refer to the Check the hardware version number section to make sure your device is supported.
• The P within the model name stands for PoE (Power over Ethernet) which does not require a power adaptor.
• Contact Grandstream directly if your device model is not listed in this table and if it failed the assisted provisioning process.
• See the Grandstream GRP260x Configuration Guide for more information
• * Please check the official Grandstream certificate verification website before provisioning, and check the quick guidance on how to use the website.

Check the hardware version number of your Grandstream desk phone

1. On the back of your device, identify the barcode on the label of the device.
2. In the P/N number, identify the last 6-digit number.
   The first 3 digits of that number will be the hardware version number. For example, if the P/N is 962-00113-15A001, then the 15A will be the hardware version and stands for V1.5.
   

Mitel

Poly

Notes:

• Provisioned Poly devices will automatically upgrade to the latest supported firmware version. Set up firmware update rules if you don't want Poly devices to automatically upgrade.
• Zoom only works with Polycom devices that are running at least version 4.0.0 of the UCS firmware. In previous versions (Polycom SIP software 3.x or earlier), upgrading from the phone's web interface, registration, and provisioning will not work with Zoom. This restriction does not apply to OBi Analog Telephone Adapters (ATA).
• Polycom VVX OBi edition phones are not supported. The only exception is the VVX D230, which has OBi firmware but is still supported by Zoom Phone.
• VVX 250/350/450 come with two firmware versions depending on the hardware revision (Old or New). Please review the Poly Product Shipping Configuration Change Notice for more detailed information about new hardware revisions.
• The USB port for storage is disabled by default on Poly Edge E series devices to prevent inadvertent misuse.

Notes (A):

• These are Poly end-of-sale models. Zoom will be removing support for these models in the near future.
• Currently, Poly end-of-sale models with a date of manufacture that is older than the date noted are unable to support Zoom's security requirements and cannot be used with Zoom Phone. The manufacturing date is usually identified by a sticker on the bottom of the phone.

Note (B): These models do not support SIP video.

Note (C): Only certain Poly Edge E and CCX models are compatible with the Saudi Arabia data center.

Notes (D):

• One expansion module can be attached to a Poly Edge E400 or E450.
• Up to two expansion modules can be attached to a Poly E500 or E550.

Note (E): To downgrade Poly CCX series or Poly Trio C60 devices from firmware version PVOS 9.x.x to any earlier version, you must follow a specific process documented by Poly. Poly requires this process and the details and instructions can be found in the following resources:

• Downgrading PVOS 9.X.X to earlier software versions
• PVOS 9.0.0 to 8.1.5 Downgrader Release Notes

Note (F): Account owners and admins can add up to 300 assignees to the Poly Rove B4 device in the Zoom web portal. Each assignee will support a single-line extension. If an extension is assigned multiple lines, such as shared line appearance or additional numbers, these will consume the 300-assignee limit. This increased limit allows for larger deployments of the Poly Rove B4 device.

Yealink

Notes:

• Provisioned Yealink devices will automatically upgrade to the latest supported firmware version. Set up firmware update rules if you don't want Yealink devices to automatically upgrade.
• After the June 14, 2020 firmware upgrade, the following end-of-life (EOL) models are only allowed to use ZTP once: T29G, T41P, T42G, T46G, T48G, and W56P.
• The USB ports for storage are disabled by default on Yealink devices to prevent inadvertent misuse.

• Note (B): These models do not support SIP video.
• Note (C): Yealink devices manufactured before 2019 are not compatible with Zoom Phone encryption and certificate security requirements. The device will fail Zoom Phone provisioning, even if it was added to the account manually or in bulk.
• Note (D): Only certain Yealink ZPA models are compatible with the Saudi Arabia data center.

Check the manufacturing date of a Yealink phone

Some models of Yealink devices manufactured before 2019 will not be compatible with Zoom. By following these steps, you can easily determine the manufacturing date of your Yealink phone.

1. Locate the serial number. You can find the serial number on the label, box, or within the user interface of the device.
2. Determine the manufacturing year:
   • For phones manufactured before or during 2021:
     1. Look at the 6th and 7th digits of the serial number. These two digits represent the last two digits of the manufacturing year.
     2. For example, for the serial number 312921805020XXXX, the 6th and 7th digits are 18, indicating the phone was manufactured in 2018.
   • For phones manufactured in 2021 or later:
     1. Look for a letter in the serial number. This letter represents the manufacturing year.
     2. For example, for the serial number 808040D04000XXXX, the letter D indicates the phone was manufactured in 2021.
        • D stands for 2021. E stands for 2022. F stands for 2023. G stands for 2024.

Analog gateways

Notes for ATAs:

• Only FXS ports can be used on ATAs.
• Only these ATA devices support fax. See the following fax setup guides for more information:
  • Poly OBi series
  • AudioCodes MP1XX series
  • AudioCodes MP1288, MP504/508(formally M500Li) 
  • Grandstream HT8XX ATA series, GXW42XX ATA series
• ATA devices often support multiple ports. After performing assisted provisioning, you can assign multiple phone users to a single ATA device based on the port capacity available.

AudioCodes

Notes:

• For setup instructions, see the provisioning guide for AudioCodes MP series gateways.
• Some models with certain revision numbers are not supported. Refer to the AudioCodes website for more information.
• For assisting provisioning on the MP504/508 (formally M500Li) Analog Gateway, follow these instructions.
• When you enabled SRTP for these models, there is a reduction in the available channels. Only the following channels have SRTP enabled and are available for use:
  
  • MP-124 - 17 channels from 24
    Note: Follow this link to differentiate if you are using MP-124E or MP-124D
  • MP-118 - 6 channels from 8
  • MP-114 - 3 channels from 4
  • MP-1288:
    • The new firmware 7.40A.500 version will support both new and old hardware component blade. You can review the AudioCodes product notice #0491 component replacement for detailed information about new hardware revision.
  • (MP-1288, MP-112, and MP504/508 (formally M500Li) don't have a reduction in available channels)

*Announced as EOL as of June 1, 2022.

Cisco

Grandstream

Notes:

• Check the firmware and device certificate versions before proceeding to device provisioning.
• Check the ATA has the latest supported firmware version below, by following the upgrade process.
• Due to the enhanced security requirement, the Zoom Phone provision server requires the HT8xx to support Generation 2 (Gen 2) certificate using ECDSA + SHA 384. Verify your ATA unit has the updated Gen 2 device factory certificate installed.
• HT812/814/818 have 2 ethernet ports (WAN and LAN). For device provisioning under Zoom Phone web portal page, be sure to specify the MAC address value by using the LAN MAC address value (not the WAN MAC address) from the unit.
• When entering the provision/config server URL path under ADVANCE SETTINGS>Firmware Upgrade and Provisioning>Config Server Path, make sure to specify the URL WITHOUT the https:// on the front.

Upgrade an ATA Grandstream firmware

1. Sign in to the ATA web page.
2. Under the STATUS page, select Software Version, then Prog.
3. Download the firmware below if you have an older version.
4. Select the ADVANCE SETTINGS page, Upload Firmware, then Upload from local directory.
5. Follow the remaining steps to complete the upgrade process.

Verify Grandstream unit has the updated Gen 2 device factory certificate installed

1. Sign in to the device web page.
2. Under the STATUS page, select Individual Certificate Generation.
3. Verify the certificate name is GEN 2 (SHA-384 + ECDSA).
   • If it isn't the correct name, proceed to the Grandstream guide.
   • If it's the correct name, proceed to the Zoom Phone device provisioning.

Find an ATA Grandstream LAN MAC address value

1. Sign in to the ATA web page.
2. Select the STATUS page.
3. On the top of the page, find the LAN MAC (Device MAC) address value.

Poly

Notes:

• Zoom does not guarantee the performance of analog devices or applications connected to Analog Telephone Adaptors (ATA).
• Polycom VVX OBi edition phones are not supported. The only exception is the VVX D230, which has OBi firmware but is still supported by Zoom Phone.

Desk phone accessories

Notes:

• For setup instructions, refer to the embedded links that point to the manufacturers' product page.
• After setting up an expansion module, customize line key settings to take advantage of the additional line keys.

Cisco

Note: The Cisco Key Expansion Module only supports customizing line key and positions for BLF, speed dial, and call park.

Grandstream

Poly

Yealink

Session Border Controllers

AudioCodes

Note: Refer to the AudioCodes website for more information.

Avaya

Note: See the Avaya configuration guide for more information.

Cisco

Note: See the Cisco configuration guide for more information.

Mitel

Note: See the Mitel OpenScape SBC or MiVoice Border Gateway Configuration Guide for more information

NextGen

Note: See the NextGen configuration guide for more information.

Oracle

Note: See the Oracle configuration guide for more information.

Ribbon

Note: See the Ribbon configuration guides for more information.

TE-Systems

Note: See the TE-Systems configuration guide for more information.

Pagers and intercom

Cloud paging is supported on all Zoom-certified output devices such as SIP speakers, SIP horns, paging adapters, and Visual Alerters from both Cyberdata and Algo.
Note: Algo and Cyberdata Paging Adapter & IP speaker/horn devices/Visual Alerter do not support the Cloud Paging's Emergency Paging overwriting Standard Paging feature. Therefore, Algo and Cyberdata Paging Adapter & IP speaker/horn devices/Visual Alerter will treat all Cloud Paging as a standard page.

2N

Notes:

• You can submit a request to Zoom Support to enable video intercom for your 2N IP device.
• 2N IP Force, Style, Verso, Verso 2.0, and Solo support assisted provisioning. Follow the assisted provisioning process to provision those devices.
• For concurrent calling to multiple destinations at once, Zoom Phone has a call queue feature to accomplish that. Even though 2N has a built-in "call queue" where you can enter multiple destinations to be called at once, that function is incompatible with the Zoom Phone system, resulting in only the first extension being called. Zoom recommends utilizing the Zoom Phone call queue for this application use case. Learn more about using the Zoom Phone call queue for concurrent calling to multiple destinations.

More information on 2N devices is available here:

Algo

More information on Algo devices is available here:

Notes:

• For Algo devices, Zoom Phone supports assisted provisioning. Detailed instructions are provided when provisioning the device in the Zoom web portal. If manual configuration (assisted provisioning is preferred) is needed, see the Algo configuration guide for more information.
  
  • The device firmware needs to be higher than version 3.2.3 to prevent audio loss.
• When adding an Algo device to the Zoom web portal, set the following Device Type fields:
  • Brand: Algo
  • Model: algo-sip-based-device
• Certain paging devices have the auto-answer capability, assigning them to any user that has an existing device(s) is not advised. We suggest assigning them to a common area extension instead.
• You do not need to contact Zoom to request a generic SIP profile.

CyberData

More information on CyberData devices is available here.

Click the links to view configuration guides from CyberData and a list of models:

• Intercom
• SIP Ceiling Speaker
• Paging Amplifier
• SIP IP66 Outdoor Horn
• SIP Strobe
• SIP Call Button
• Paging Adapter
• SIP Paging Server

Notes:

• If you're running firmware version higher than 20.0.4 and having issues provisioning your CyberData device to Zoom Phone, roll back to firmware version 20.0.4.
• If your CyberData device support Night Ringer, this extension can be set up as a user extension to allow the device to be assigned to up to 2 users. Make sure to map the extensions accordingly to the corresponding key positions.
• Certain paging devices have the auto-answer capability, assigning them to any user that has an existing device(s) is not advised. We suggest assigning them to a common area extension instead.
• If you experience any difficulties with device provisioning while running firmware version 22.0.x (including v22.0.1), contact Cyberdata Support to obtain a firmware update that addresses the provisioning issue.

Grandstream

Notes:

• You can submit a request to Zoom Support to enable video intercom for your Grandstream video intercoms.
• Follow the assisted provisioning process to provision those devices.

More information on Grandstream devices is available here:

For Zoom Phone Appliances, see our list of certified devices. Learn more about getting started with Zoom Phone Appliances and the Zoom Phone Appliance user guide.
For Zoom Certified Devices, see the list of Zoom Certified Devices.
For Zoom Phone Interop-certified hardware, see the list of Zoom Phone Interop-certified hardware.