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Make conference call using same GSM channel (merge calls) with Asterisk or GSM Gateway

I have a 2 setups:

-Raspbx(Asterisk11 +FreePBX) with 4 chanmobile bluetooth module already working

-Grandstream UCM6202 with GoIP-8 Hibertone GSM gateway.

I can make and receive calls from my SIP extension to GSM networks with the gateway or with the Raspbx chanmobile.

The problem is that i cant use the conference call of GSM (call 2 external numbers with one GSM channel/chip) like i do with a normal android phone (The proccess with this is, call a number, press the add to call button, call the other number, then merge the call and have a conference with the numbers called)

Im looking to do a conference call were we put the call at hold(or not) with the voip internal phone then call another external number via the same GSM Channel that we used to call the first one and merge the three calls for conference. (This is working with a normal android phone)

I have a disposal a raspberry pi with 4 bluetooth modules (all working) and chanmobile configured with 4 phones, a Grandstream UCM6202, a hybertone GoIP-8 GSM gateway for doing this job we have tryed both options and the workaround solution that we find it is using chanmobile and have the critical users using the android phones to do the normal conferences call via the android merge options, now we want to have this options to all our internal extensions.

Compétences : Android, PBX Asterisk, Linux, Mobile App Development, VoIP

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( 0 commentaires ) El Alto, Bolivia

Nº du projet : #19247725

3 freelance font une offre moyenne de $497 pour ce travail

Erewin

hi there i think you need to understand GSM AT commands and how it can be executed at GSM gateways. be free to ask me any question bye, Pavel

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