STUN and SIP for Hearing Impaired Video Phone

Unanswered Question
Oct 2nd, 2009
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I have ZVRS Z-340 I am trying to connect to an outside server. I have the policy outbound for the ports the phone needs. If SIP is inspected on the ASA is their anything else I need to enable for STUN?


Below are the ports the Vid phone requires outbound only. I guess my question is do I need to config more than access rules for the STUN ports. The SIP port is set.


80 TCP 443TCP

3478 UDP STUN

3479 UDP STUN

5060 UDP SIP

5200 UDP

23000-23003 UDP

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irisrios Thu, 10/08/2009 - 05:59
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When a user sends a message to a server from inside a NAT, the server will reflect back whatever address the NAT gives it. STUN allows this reflected address to be used to establish an RTP session with the user inside the NAT, without involving any of the SIP proxies in the middle.


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