troubleshooting Question

Mitel - SIP - one way audio

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durango099Flag for United States of America asked on
Hardware FirewallsTelecommunicationsIP Telephony
28 Comments1 Solution3778 ViewsLast Modified:
Hello Experts

Having found my issue with the VLAN setup I am left with one more issue:

I have no inbound audio to the endpoints (Mitel 5330e)

Networks looks like this:

SIP provider - Sonicwall TZ-180 - HP 2910al with 2 VLAN's ( &
Mitel vMCD - static on VLAN 1
Mitel endpoints - via DHCP VLAN 2

Peer to peer audio internally works both ways
Outbound audio on SIP trunks works
Inbound audio on SIP trunks - no worky

Attached is the SonicWall access rules - I can monitor the connections and I see the active call; however only the tx byte increment and the rx bytes stay at 0

So it would appear to be a NAT issue, however I can't seem to find my way around it.



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