A customer asked to integrate Unity Connection with Cisco UCM using SIP protocol. Which two features must be enabled on SIP security profiles? (Choose two)

The correct answer is D. Accept replaces header E. Accept unsolicited notification. Two SIP security profile settings are critical for CUC-UCM SIP integration. 'Accept replaces header' enables UCM to process SIP REPLACES headers, which Unity Connection uses during supervised call transfers (e.g., transferring a caller mid-greeting to a live extension). 'Accept…

On-Premises Call Control

Question

Options

AAccept presence subscription
BEnable application level authorization.
CAllow charging header
DAccept replaces header
EAccept unsolicited notification

How the community answered

(44 responses)

A
2% (1)
B
7% (3)
C
11% (5)
D
80% (35)

Explanation

Two SIP security profile settings are critical for CUC-UCM SIP integration. 'Accept replaces header' enables UCM to process SIP REPLACES headers, which Unity Connection uses during supervised call transfers (e.g., transferring a caller mid-greeting to a live extension). 'Accept unsolicited notification' allows UCM to accept SIP NOTIFY messages that Unity Connection sends unsolicited - this is required for Message Waiting Indicator (MWI) updates (the lamp/stutter-tone on phones). Without these two settings, transfer and MWI features fail. Options A, B, and C relate to presence, authorization, and billing headers not required for standard CUC integration.

Topics

#Cisco Unity Connection#CUCM SIP Integration#SIP Security Profile#MWI

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