Sip Trunk Cannot transfer 1

[jose1000]

Hello everyone
This is strange, very strange.
Working with IPO 500V2, ver 8.1.79.
The unit has a SIP Trunk. It was connected directly to Internet with a public IP.
Came here to put it behind a router, as it should.
Did it, works fine, except that:
1 Cannot put an external call On Hold
2 Similar to 1, cannot transfer an external call
3 Calls that are answered by Embedded Voice Mail Auto Attendant cannot hear anything
Tried changing CODECS, RTP ports, but nothing.
Any ideas?
Best regards.

 

[Okkie26]

Enable RTP keep alive on system > Lan > Voip.

 

[jose1000]

Thanks for the response.
Did that. Activated both RTP and RTCP. No luck.
Any other idea?

 

[Okkie26]

You did that on the lan you're using for the SIP Trunk?


Otherwise, try a IP route 0.0.0.0 mask 0.0.0.0 gateway to the router and the lan port you are using

 

[Okkie26]

Did you also enable inintial keep alive?

 

[jose1000]

Just resolved it! Cleared the Stun option, brought it back to None and everything is fine now!
Thanks!

 

[Okkie26]

Well done..


Always nice if someone is asking a question, and also give the solutions if he found out itself.