Troubleshooting Guide for Cisco Unified Communications Manager, Release 12.5(1) - Cisco Unified Communications Manager Services Issues

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/trouble/12_5_1/cucm_b_troubleshooting-guide-1251/cucm_b_troubleshooting-guide-1251_chapter_0110.html

Published

2023-11-24

Updated

unknown

Accessed

2026-09-30

HTTP status

200

License

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

Source notes citing this source

• When a hardware transcoder is installed but calls between incompatible codecs still fail, the Release 12.5(1) troubleshooting guide gives as a possible cause that no transcoder resources are registered with Unified CM and directs checking the ResourceAvailable counter of the Cisco MTP Device object in the Real-Time Monitoring Tool. in context
• The Release 12.5(1) troubleshooting guide states that one installation of the Cisco IP Voice Media Streaming software supports 16 Unicast Available Conferences of three people per conference. in context
• The Release 12.5(1) troubleshooting guide gives the symptom text 'No Conference Bridge Available', says it could indicate either a software or a hardware problem, and directs verifying that software or hardware conference bridge resources are registered with Unified CM. in context
• For 'No Conference Bridge Available' the Release 12.5(1) troubleshooting guide also directs checking the Unicast AvailableConferences counter in the Real-Time Monitoring Tool, the maximum number of users configured for ad hoc and meet-me conferences, and the Audio Bandwidth setting in the Location Configuration window. in context
• The Release 12.5(1) troubleshooting guide attributes an established call with no supplementary services on an H.323 device that does not support H.323v2 to a possible MTP resource problem, and directs verifying that MTP resources are registered and that Media Termination Point Required is checked in the gateway configuration. in context
• The Release 12.5(1) troubleshooting guide states that one MTP software application supports 24 calls, which differs from the Release 15 configuration guide figure of a default of 48 software MTP resources. disputed in context

Cite this source record

APA

WarmTransfer. (2023, November 24). Troubleshooting Guide for Cisco Unified Communications Manager, Release 12.5(1) - Cisco Unified Communications Manager Services Issues. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cucm-troubleshooting-1251-services-issues

BibTeX

@misc{warmtransfer-cisco-cucm-troubleshooting-1251-services-issues,
  title  = {Troubleshooting Guide for Cisco Unified Communications Manager, Release 12.5(1) - Cisco Unified Communications Manager Services Issues},
  author = {{WarmTransfer}},
  year   = {2023},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cucm-troubleshooting-1251-services-issues},
  note   = {Cisco Systems, accessed 2026-09-30}
}