[cisco-voip] 7200VXR as Session Border Controller/CUBE

[chris.flav at yahoo.ca]

Hello,

We are looking to deploy a SBC for SIP subscribers and are looking at
using a 7204VXR.  We are not needing transcoding facilities but simply
forwarding SIP INVITES and signalling to and from a SIP gateway to
subscriber endpoints.

The documentation regarding the setup of such a system is terse,
therefore any pointers to related information or example configs would
be appreciated.

I have looked at http://www.ciscosystems.com/en/US/docs/ios/voice/cube/configuration/guide/12_4t/vb_12_4t_book.html  however I am not seeing any info on the following:

- RADIUS authentication of SIP registrations?
- different SIP gateways based on realms/fqdn?

Does anyone have the most basic snippets required to allow for:

- SIP gateway behind NAT
=====================
it has to be more than:
!
ip nat sip-sbc
  proxy [inside.ip.address] 5060 [outside.ip.address] 5060 protocol udp
  mode allow-flow-around
  session-timeout 300
  override address

- RADIUS auth ?

- REGISTER to SIP gateway (proxying?)

Do we need to use the sip-ua for this?


Thanks in advance,

C. Flav