3CX with Acrobits Version 4.0 for iPhone

[Phthisicus]

Hello everyone

I have a iPhone with Acrobits version 4.0 that supports multitasking.
My 3CX is update to the last version.

To enable multitasking in acrobits you have to switch your sip protocol from UDP to TCP.
So i forwarded the TCP protocol port 5060 to my server.
And acrobits logs in succesfully to my 3CX server. But i don't hear my audio anymore both ways.

Is ther somting i have to configure in 3CX myself to support TCP Sip connections ??

Here is a short discription how to use multitasking in Acrobits. I want to use option 2 because the battery lasts longer.

http://www.acrobits.cz/tutorials/ios4-and-multitasking-on-groundwire-and-acrobits-softphone/

Can anyone help me with this ??

Thnx !

 

[StefanW]

the issue is that using TCP for sip have noting to do with the speach what will still be send in UDP i guess...
But still option 2 is a bit buggy as well...

 

[Phthisicus]

I have tested a few things.

When i change my setting for sip to UDP i will get speech both ways.
When i change my setting for sip to TCP i don't get speech.

Looks like 3CX does not now what to do with TCP packets.

Do i have to change a few settings in 3CX ?

 

[KerryG]

I wasnt aware that 3CX supported SIP over TCP yet. Is that listed in the features now?

 

[StefanW]

Media Transport (RTP/SDP) no
SIP must be due to Exchange only speaks TCP...
But i checked with snom just right also not working....

 

[Phthisicus]

Acrobits Speaks of a Proxy that converts SIP from UDP to TCP.

Does anyone know proxy software that does convert SIP from TCP to UDP ?

Or does anyone know a free service who does that ?