Prohibited and Limited Support Devices

Prohibited and Limited Support Devices

Due to various factors, there are certain devices that are either prohibited or not supported on the hosted phone platform. The list below is meant solely as an example and is not to be considered a complete list of devices. 


  • none

Prohibited Devices

The following devices may not be used with your hosted phone system for the safety and security of the person(s) requiring the devices. You will be responsible for any and all liability caused by the installation of these devices.

  • Health and Safety devices
  • Medical monitoring devices
  • Fire Alarms
  • Elevators
  • Emergency response monitoring
  • Burglar alarms
  • Fax Machines

Limited Support Devices

The following devices will be supported on a best-effort basis only. 

  • Credit card terminals
  • Postage machines

    • Related Articles

    • Supported Devices

      Updated - July 6, 2023 Most current list of supported devices. (Download attachment for excel file) Supported Devices End of Support Devices End of Life Devices
    • SRTP Audio Encryption Support

      Added functionality that allows for encrypted RTP audio communications between SIP devices, known as SRTP (RFC-3711). SRTP works in conjunction with the TLS protocol for SIP traffic to secure all communications to and from the phones. ZRTP (RFC-6189) ...
    • Capture PCAP From Htek Devices

      When troubleshooting a particularly difficult networking issue that is affecting one or more phones collecting a packet capture from the device can provide insightful details to yourself, your IT company, or our support team. Prerequisites Access to ...
    • Courtesy Phone Extensions

      Prerequisites  You will need a user to have a minimum of `Office Manager` level of permissions to make these changes. If you do not have this access, please contact support. Details Courtesy Phone Extensions allow you to associate certain low-use ...
    • When to use a Gateway or an ATA

      This guide is used to help the user decide whether to use a Gateway or ATA. Prerequisites None Introduction Gateways and ATA's may look similar but they serve 2 different functions. If you have an existing PBX that does not directly support a SIP ...