Source note · Unified CM media resources

For the ISR 4000 software MTP to work, the codec and packetization must be configured identically on the inbound and outbound call legs.

Checked 2026-09-25

For the software MTP to function properly, codec and packetization must be configured the same way on both in call legs and out call legs.

Vendor: Cisco
Product: Cisco 4000 Series ISR (IOS XE)
Subsystem: media termination point
Deployment: on-premises
Region: not restricted
Release range: IOS XE Everest 16.6
Checked: 2026-09-25

Sources

Cisco 4000 Series ISRs Software Configuration Guide, Cisco IOS XE Everest 16.6 - Support for Software Media Termination Point — Cisco Systems · tier 2 current vendor documentation · Support for Software Media Termination Point / Restrictions

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM media resources: source note cucm-media-resources-isr-sw-mtp-same-codec. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-media-resources-isr-sw-mtp-same-codec

BibTeX

@misc{warmtransfer-claim-cucm-media-resources-isr-sw-mtp-same-codec,
  title  = {Unified CM media resources: source note cucm-media-resources-isr-sw-mtp-same-codec},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-media-resources-isr-sw-mtp-same-codec},
  note   = {Source note cucm-media-resources-isr-sw-mtp-same-codec, checked 2026-09-25}
}

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