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Android SIP/IAX to GSM Asterisk Channel/Trunk

My client needs to use an android cellphone as an asterisk channel/Gateway. His aim is to make phone calls using his Asterisk PBX through a cellphone running android.

You are free to choose how to implement this feature. All that is required is that in the end the Android phone will be acting as a SIP or IAX to GSM channel/trunk/FXO and other SIP devices can connect and make phone calls using this.

You choose the best way to do it:

Add the feature to SIPDroid: [url removed, login to view]

Add the feature using the BatPhone Asterisk Build: [url removed, login to view]

Or do it your own way.

Basically, this feature would allow Android to act as a SIP "Trunk". Other SIP 'devices' would be able to initiate calls over the GSM connection on the phone, and receive incoming calls from the GSM network.

I can see being required is a modification to the code to route the VoIP audio to GSM audio, event handling for incomming GSM calls, and a small extension to the SIP stack. I would have a look at this myself, but I am having trouble getting my head around the source at the moment (I know very little about Java or Android programming, and I have always hated trying to understand someone else's code anyway) although I am willing to keep trying. If someone can point me in the right direction I will make an attempt to hack the support in as a starting point.

Skills: Android, Asterisk PBX, VoIP

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About the Employer:
( 0 reviews ) London, United Kingdom

Project ID: #1657004

3 freelancers are bidding on average £188 for this job

navaismo

Hi, for personal use, sipdroid or another hacking is great, for a production server that is not recommended. Its better if you buy a GSM gateway. I can setup and gives advices for gsm gateways vendors.

£150 GBP in 5 days
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4.5
D127ShPoQ

Custom software development - <b><i>Removed by Admin</i></b>

£250 GBP in 1 day
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mikolp

PLEASE SEE PMB

£165 GBP in 3 days
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