Configuring second SIP trunk on Cisco UC500 series box.

1stopit
1stopit used Ask the Experts™
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We are trying to configure two SIP trunks on our UC540 system, one for inbound calling and one for outbound calling.  Our SIP trunk provider has assigned our ported office PSTN number on one SIP trunk, and we need the second trunk configured to take advantage of a specific billing feature.

Inbound calling is fine and is routed to a blast group - all good, but note we cannot configure the second trunk using the GUI and need to configure from the CLI... but need some help and guidance on what parameters we need to set.

Both SIP trunks are from the same provider, but two different platforms.  The inbound trunk is authenticated whereas the outbound is configured unauthenticated and is secured provider side by connecting IP address... so we just need to send direct to a server on provider side.

Both trunks are G.711a codec.

This is a multiple provider config, not a primary/secondary solution... if that makes any difference.

Thanks.
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Commented:
take a look at this Cisco article for SIP trunk redundancy across multiple service providers

http://www.cisco.com/en/US/docs/ios/voice/sip/configuration/guide/sip_cg-multi-registrars.html

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