Callmanager SIP Trunk Maximum # of Calls?

[NPT_2]

We are installing a XOP Networks audio conference bridge to integrate with our Callmanager 7 Cluster via SIP Trunking. We will have 20 ports licensed on the conference bridge, do I need to setup 20 separate SIP trunks on the Callmanager configurationor can a single SIP trunk handle multiple calls?

[kelvin.blair]

A single SIP Trunk can handle multiple calls with no problem. IMHO, I would recommed getting a Cisco CUBE though to integrate between XOP and Call Manager. It will work more efficently for you.