Compatibility problems with ITSP

[threebit]

Hi,
Here in New Zealand the major ITSP is one called iTalk.
We have one big issue with using the Quadro with iTalk, in that, if a call has been made via iTalk (in or out) then when a user attempts to transfer the call, there is no audio after the transfer.
This also means, that when the user puts a call on hold, the external caller hears no Music on Hold.
Has anyone experiences issues similar to this with other ITSPs?
Thanks,
Matt

[megatron]

I am having the SAME problem with engin in Australia


The problem is in the RE-INVITE.... on ITSP calls to ITSP calls.. engin to engin..


epygi sip to epygi sip works and another ITSPfrom Spectrum to Spectrum...works


The problems in cause by the call being RE-INVITED and NOT getting the IP address of the host ( or fails authorisation ) of the trasferred call...


MY PROBLEM is that the CALL IS DROPPED....


If your problem is JUST NO AUDIO,,, then try using RTP proxy in call routing...

[definitel]

Hello Megatron, I have done what you sugested without success, no audio after transfer.





Jose

[innyspencer]

well, all you needs a good service provider for your problem ,i think only that can help you out of this.
Thanks
SIP IVR (http://www.broadconnect.ca/ip-telephone/sip-trunking/sip-trunking-for/enterprise-sip/)