CallManager 5.1(3) SIP trunk to Broadvoice/Vonage/VOIP provider

Unanswered Question
Jan 21st, 2008

Had anyone setup a SIP trunk with Cisco Call Manager and broadvoice?

Is there a voip provider that you would recommend that allows SIP trunks to our version of call manager?

I have this problem too.
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shaunewing Sun, 12/28/2008 - 21:31

You will need to find a provider that allows authentication based on IP address, not based on a username/password combination.

What I've done is put an Asterisk box in between CUCM and the providers (Asterisk handles authentication) - it's the easiest way to solve the issue while maintaining flexibility in being able to choose the provider.

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