Release Notes for Cisco Unified Communications Manager and the IM and Presence Service Release 15SU2

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/15/SU2/cucm_b_release-notes-for-cucm-imp-15su2.html

Published

2024-12-04

Updated

unknown

Accessed

2026-10-01

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• After upgrade or migration to 15SU2 or later, Unified CM moves to Smart Transport automatically if it can reach smartreceiver.cisco.com. in context
• On an upgraded or migrated 15SU2+ cluster, if the connection to smartreceiver.cisco.com fails, Unified CM falls back to Call Home mode. in context
• Unified CM nodes freshly installed at 15SU2 or later support only Smart Transport for Smart Licensing. in context
• A fresh 15SU2+ Unified CM install in direct mode probably cannot register while smartreceiver.cisco.com is unresolvable or unreachable, because fresh installs support only Smart Transport and have no Call Home fallback. inferred in context

Cite this source record

APA

WarmTransfer. (2024, December 4). Release Notes for Cisco Unified Communications Manager and the IM and Presence Service Release 15SU2. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-relnotes-cucm-15su2

BibTeX

@misc{warmtransfer-cisco-relnotes-cucm-15su2,
  title  = {Release Notes for Cisco Unified Communications Manager and the IM and Presence Service Release 15SU2},
  author = {{WarmTransfer}},
  year   = {2024},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-relnotes-cucm-15su2},
  note   = {Cisco Systems, accessed 2026-10-01}
}