IP Office telephony support during persistence

Last Updated : Jul 23, 2025 |
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Support for telephony features on Avaya Cloud Office phones when using IP Office is limited. The supported telephony features include:
  • Registering the phones to IP Office
  • Basic operation as SIPPING-19 devices
  • Internal calls between the Avaya Cloud Office extensions that have failed over to IP Office
  • Incoming external calls
  • Outgoing external calls
  • Emergency calls