Per a CVP 12.5 technote, when heartbeats are not enabled an unreachable endpoint stays in the Call Server's unreachable destination table for 3 minutes before it is tried again.

Checked 2026-09-30

Vendor
Cisco
Product
Unified Customer Voice Portal
Subsystem
SIP Server Groups
Deployment
on-premises
Region
not restricted
Release range
12.5 per technote; not restated for 15.0(1)
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up a CVP comprehensive call flow in UCCE: source note cvp-comprehensive-call-flow-setup-unreachable-3min. WarmTransfer. https://warmtransfer.net/knowledge/claims/cvp-comprehensive-call-flow-setup-unreachable-3min

BibTeX

@misc{warmtransfer-claim-cvp-comprehensive-call-flow-setup-unreachable-3min,
  title  = {Setting up a CVP comprehensive call flow in UCCE: source note cvp-comprehensive-call-flow-setup-unreachable-3min},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cvp-comprehensive-call-flow-setup-unreachable-3min},
  note   = {Source note cvp-comprehensive-call-flow-setup-unreachable-3min, checked 2026-09-30}
}

Read in context