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SRP and VoIP

grdollarcisco
Level 1
Level 1

‎02-20-2010 11:21 PM

I have a Thomson ATA sitting behind the SRP. Network side is an ACME Packet SBC. Outbound calls work fine, but inbound do not work. Makes me think the SBC is not being allowed to keep 5060 open. SIP ALG on the SRP is disabled. Any ideas? See my TiVo post for router config file.

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Maulik Shah
Level 5
Level 5

‎02-22-2010 04:53 PM

Can you post the SRP config from http:///admin/config.xml?

Couple of questions:

- Assume SPA2102 is setup to register to the ACME every so often - does that work and if so what is the refresh registration timeout? Not sure if this is lower than the pinhole open for SIP registration causing this issue?

- Can you test an inbound call right after you make an outbound call? If that works then it may well be the NAT pinhole not being open for SIP traffic to ATA.

- Is there a setting on the Thomson ATA for NAT keepalive similar to the SPA ATAs?

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