Limitations during failover or failback

Last Updated : Apr 17, 2026 |
Limitations of the phone when the phone is in the process of failover or failback are as follows:
  • Held calls are dropped.
  • Calls that are in the middle of the conferencing or transfer set up are dropped.
  • Calls in the dialing or ringing state might not be completed.
  • Emergency calls might not work depending on the stage of failover and the functionality available on the alternate server.
  • Incoming calls might not be completed, or they might get diverted to voicemail.
  • Message Waiting Indicator is cleared.