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CME using SIP with a Watchguard firewall

Hey,

Hope I can find someone who has experienced issues similar to what i have experienced.

I had 2 clients who are using CME and I moved them onto SIP with a Watchguard Firewall.

 

Outgoing calls always work find but inbound calls have always been an issue. Checked with the SIP provider and they always say that the IP address that they are receiving is the internal address as opposed to the external. On the watchguard we had to use SIP ALG initially to get calls atleast working but it always the issue was pointing towards that.

 

But with the Cisco ASA i have not had the issue.

 

The SIP Provider in the UK is Gamma. 

 

Has anyone experienced this issue and how did you resolve it. Is this a config issue on the CME.

 

Thanks in advance i can provide the configurations if required.

 

 

Please rate the post Shibly Ibrahim
  • IP Telephony
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