Cisco Unified Communications Manager SCCP Integration Guide for Cisco Unity Connection Release 15 - Setting Up a Cisco Unified Communications Manager SCCP Integration

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/integration/cucm_sccp/b_15cucintcucmskinny/b_14cucintcucmskinny_chapter_010.html

Published

2023-12-18

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco documentation terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco's SCCP integration guide advises assigning Send MWI Requests to the least busy ports. in context
• For SCCP integrations, the MWI On and MWI Off directory numbers are created in Cisco Unified CM Administration under Advanced Features > Voice Mail > Message Waiting. in context
• The SCCP integration guide has the MWI On and MWI Off numbers configured as two unique extensions in the same partition (the voice mail pilot partition in its example), with Message Waiting Indicator set to On and Off respectively and the calling search space used by user phones. in context
• In an SCCP integration, the Unity Connection port group's MWI On Extension and MWI Off Extension must match the MWI On and Off numbers configured in Unified CM. in context
• The AXL server account configured in Unity Connection must be a Unified CM application user with the Standard AXL API Access role. in context
• AXL servers are configured from the phone system's Phone System Basics page, Edit > Cisco Unified Communications Manager AXL Servers, with Order, IP Address, Port, Username, Password and the Unified CM version (non-SSL or SSL matching port 80, 443 or 8443). in context
• Unity Connection uses the AXL server for importing Unified CM users and for changing certain phone settings used by personal call transfer rules. in context
• The Unity Connection SCCP port group requires a Device Name Prefix matching Unified CM and MWI On and MWI Off extensions, plus the primary Unified CM server address. in context
• With multiple phone system integrations, a phone system trunk (Telephony Integrations > Trunk) with a Trunk Access Code lets Unity Connection transfer calls to extensions on another phone system. in context
• The total number of voice messaging ports across all Cisco Unified CM clusters integrated with Unity Connection cannot exceed the number of ports enabled by the Unity Connection licenses. in context
• The SCCP hunt list has For Voice Mail Usage checked, contains the answering-port line group, and is reset after the line group is added. in context
• The SCCP hunt pilot is placed in the voice mail pilot partition (example VMPilotNumberPT), points to the hunt list of answering ports, and must differ from the voice mail port extensions. in context
• The SCCP line group distribution algorithm is Longest Idle Time for a single Unity Connection server and Top Down when a Unity Connection cluster is configured. in context
• The SCCP line group contains only the voice mail ports that answer calls, not dial-out-only ports, with directory numbers in numerical sequence. in context
• For an SCCP integration, two Message Waiting directory numbers are created under Advanced Features > Voice Mail > Message Waiting, one to turn MWI on and one to turn it off, both in the voice mail pilot partition. in context
• The SCCP procedure creates a partition for voice mail port directory numbers (example VMRestrictedPT), a partition for the hunt pilot (example VMPilotNumberPT) and a calling search space for the ports (example VMRestrictedCSS) that user phones do not use, so users cannot dial the ports directly. in context
• SCCP voice mail ports are created with the Cisco Voice Mail Port Wizard (Advanced Features > Voice Mail > Cisco Voice Mail Port Wizard), and the voice mail server name must match the Device Name Prefix in Unity Connection. in context
• For the SCCP integration, the voice mail pilot extension matches the hunt pilot number and Make This the Default Voice Mail Pilot is checked. in context

Cite this source record

APA

WarmTransfer. (2023, December 18). Cisco Unified Communications Manager SCCP Integration Guide for Cisco Unity Connection Release 15 - Setting Up a Cisco Unified Communications Manager SCCP Integration. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cuc15-cucm-sccp-integration-setup

BibTeX

@misc{warmtransfer-cisco-cuc15-cucm-sccp-integration-setup,
  title  = {Cisco Unified Communications Manager SCCP Integration Guide for Cisco Unity Connection Release 15 - Setting Up a Cisco Unified Communications Manager SCCP Integration},
  author = {{WarmTransfer}},
  year   = {2023},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cuc15-cucm-sccp-integration-setup},
  note   = {Cisco Systems, accessed 2026-09-25}
}