ONE WAY AUDIO ISSUE

Hi Harikrish

This sounds related to the SIP helper, given this traffic is being sent over a VPN, does disabling the SIP helper improve the situation? This can be done by running the following from the Console prompt:

console> cyberoam system_modules sip unload

(This can be re-enabled again using the "cyberoam system_modules sip load" command)

Greg

Already I done it but it will not work.

If any routing Issue. pls tell me

The Command "console> cyberoam system_modules sip unload" does not exist on a XG Sophos Firewall or am I mistaking?

Huber,
the correct command is:
system system_modules sip unload.

Luk

Hi Huber,

I am already Done this command

*. It will not work.

But it will not Work.

Any new info on this. Our phone system is the last thing I am trying to move over to XG from UTM.

I cannot get outbound audio to work at all.

Hi All,

Did anybody  managed to ever resolve this issue? If you did can you share your solution?

I have a similar setup, VoIP/SIP controller at HQ on the LAN and branch office connected via IPSEC VPN with remote phones. Routed network with no NAT involved. Remote phones can register successfully. Extension to Extension calls work Peer to Peer with bi-directional audio no issues. Local phone to SBC work fine for outbound calls. However remote IP Phone have one way audio from the SBC.

XG Firewall replaced a previous Fortigate at HQ with the IPSEC VPN re-established to the branch Fortigate. Before migration all good. After migration with ONLY the XG firewall change, VoIP broken.

Did a Wireshark sniff and realised that the controller did the necessary hand-off to the SBC via a SIP SDC packet. Phone managed to open a successful RTP Session to the SBC but somehow the packet back from the SBC can't seem to reach the phone.

Tried with both the SIP ALG loaded and unloaded. Tried with specific rules allowing traffic both directions with UDP port range from 1-65000, All without success.

Running out of options before declaring that the XG cannot handle the SIP/RTP traffic.

Anybody got any ideas?

Thanks.