SIP/GSM Gateway/Trunk

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FEATURE REQUEST

I do not think this one would be too difficult to implement. Most of the code 
is already there.

Basically, this feature would allow SIPDroid 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. It would allow a cheap Android 
phone to replace the (often very expensive) devices out there which perform 
this function. It would also allow, for example, a person to deal with their 
mobile calls through their SIP system (for example, user gets home, phone 
connects to WiFi, calls are then routed over SIP to their desk phone).

All(!?) 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.

Original issue reported on code.google.com by drmous...@gmail.com on 8 Mar 2011 at 2:46

• Merged into: #600

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Original comment by pmerl...@googlemail.com on 9 Mar 2011 at 8:26

• Changed state: Duplicate
• Added labels: Type-Enhancement
• Removed labels: Type-Defect

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this is what i'm looking for!

Original comment by wook...@gmail.com on 17 Oct 2011 at 6:24

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yes i agree, this feature is really important. Am also waiting for it. 
Thanks

Original comment by oquid...@gmail.com on 18 Oct 2011 at 5:54

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Nice feature ! Waiting for it !

Original comment by sofcom...@gmail.com on 20 Oct 2011 at 8:29

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If i see that happening i am definitely getting an android phone

Original comment by i...@paz-labs.com on 15 Nov 2011 at 8:44

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Not mentioned here is the very attractive feature of eliminating roaming 
charges for inbound and outbound calls.    If you travel overseas, prior to 
departure, put your 'home' SIM into an Android phone connected to the power 
supply.  Calls routed over SIP can be sent to a DID (or GV number), then can be 
further passed to a local SIM in the overseas country you are visiting.  Ibound 
calls to home country can be carried by SIP to the 'home' phone, then out to 
the local PSTN on the 'capped' minutes plan of the owner.  If the family are at 
home, use an ATA to divert all calls across the GSM if that is lesser cost than 
using a landline.  Furthermore if (as in my case) you have 3G data bundled in 
your voice plan, personal hotspot feature in Andriod can be deployed to provide 
3G backup to your home ADSL service.  SMS forwarding can be also installed from 
a number of apps available SMS Diverter being one.  Inbound SMS is the only one 
I can't quite think of being possible, except by maybe using an SSL program to 
VPN into the Android phone.  If this can be made available by way of additional 
apps, now that is a real winning formula!

Original comment by simpsonp...@gmail.com on 21 Nov 2011 at 3:59

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I am  already doing what you mention, but imagine the following. When you 
travel you purchase two sim card that have free calls between them. You also 
carry a second phone. You leave the second phone in your hotel room or 
somewhere that has internet access and it route all calls from your pbx or did 
to the mobile you have with you. Like that you get incoming calls for free.

What you mention can easily be achieved with one of the roaming sims that give 
oyu free incoming calls.

Original comment by i...@paz-labs.com on 21 Nov 2011 at 4:53

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I saw somewhere that the GSM audio is handled by some coprocessor and could not 
be routed anywhere else... Is that right?

Original comment by gabrielo...@gmail.com on 22 Nov 2011 at 1:11

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saw it here:
http://android.stackexchange.com/questions/2692/converting-phone-to-sip-gateway

Original comment by gabrielo...@gmail.com on 29 Dec 2011 at 11:30

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more info:

http://mortlemania.wordpress.com/2010/06/10/call-recording-crippled-on-android-f
ix-this-now-google/#comment-250

http://code.google.com/p/android/issues/detail?id=2117#c180

Original comment by gabrielo...@gmail.com on 29 Dec 2011 at 11:43

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We really need it!
I contribute $ 500.00 for those who provide this feature!

Original comment by fabiocon...@gmail.com on 11 Jan 2012 at 1:39

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I need it too!

Original comment by webp...@gmail.com on 14 May 2012 at 10:04

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I think this would be an excellent feature too.  

On my tariff we get free, unlimited landlines.  We use pbxes.org and would like 
to route outbound landline calls over the GSM device to save on call costs.

Original comment by j...@mansford.net on 6 Aug 2012 at 11:08

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Yes! I contribute $ 100.00 for those who provide this feature! 

Original comment by n...@nicocesar.com on 6 Sep 2012 at 8:53

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I was thinking programming that so I could use Nexus 7 to make and receive 
calls and also sens sms

Original comment by karim.bo...@gmail.com on 6 Oct 2012 at 8:04

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I will give US$1000/= if any1 can provide the above solution with some other 
customize features I need. contact me alpharomeo747@gmail.com

Original comment by alpha.ro...@gmail.com on 3 Mar 2013 at 5:19

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It is not just a software issue. The hardware used has to have some special 
feature so the audio can be routed.

Original comment by gabrielo...@gmail.com on 6 Mar 2013 at 7:26

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Yes I do understand that it is a hardware issue too. But the hardware needs to 
be adopted as per the requirement of the software. Most of the latest device 
available in the market are high configuration but the question is what is the 
hardware requirement. If anyone can have the guideline how to implement the 
whole issue and what hardware it required that can be arranged.

alpharomeo747@gmail.com

Original comment by alpha.ro...@gmail.com on 15 Mar 2013 at 9:10

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I read somewhere that it may be possible to use the bluetooth stack to enable 
to routing of voice... might be worth looking into if you have the ability.

Original comment by Bonj.b...@gmail.com on 15 Mar 2013 at 9:28

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I also want this feature.

Original comment by aneesiqb...@gmail.com on 13 May 2013 at 4:40

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i also looking for this feature

Original comment by ma...@odklop.info on 6 Jul 2013 at 9:28

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i also looking for this feature

Original comment by svitm...@gmail.com on 31 Oct 2013 at 4:13

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[deleted comment]

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i also looking for this feature

Original comment by theodor....@googlemail.com on 1 Nov 2013 at 9:50

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I think its possible over the bluetooth Stack. For Handsfree things in the car 
it works on the same line.

Original comment by theodor....@googlemail.com on 1 Nov 2013 at 9:52

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I really want it too!

Original comment by St.Ga...@gmail.com on 10 Nov 2013 at 1:31

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[deleted comment]

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I am also looking above feature

mail me ceo@gventure.net

Original comment by vikaskum...@gmail.com on 18 Nov 2013 at 6:06

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Sorry to bring up an old subject, but it looks like direct call recording is 
possible with certain hardware and root  -technically this becomes more 
feasible?

http://forum.xda-developers.com/showthread.php?t=1441643
https://play.google.com/store/apps/details?id=com.skvalex.callrecorder

Original comment by themidni...@googlemail.com on 29 Mar 2014 at 2:15

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If i call someone from GSM network, the sipdroid is starting.How can I stop 
sipdroid?

Original comment by cristi.s...@gmail.com on 16 Apr 2014 at 8:40

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It's good idea.i also waiting for this

Original comment by dilan89t...@gmail.com on 24 May 2014 at 2:43

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I also want this feature.

Original comment by dsha...@apposit.com on 10 Oct 2014 at 12:42

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I want to be able to place my mobile on charge, in a good reception area, and 
use it to accept SIP sessions from a SIP over WiFi capable device.

At present i use a Sony SBH-52 bluetooth device, which is awesome, but it is 
difficult to initiate calls (I have to get up).

Yes, that's lazy, but remember: If you want to improve a particular process, 
get a lazy person to do it. Lazy people find ways to do the same stuff using 
less effort. Also know as 'progress'.

Original comment by de...@thelongwalk.eu on 2 Dec 2014 at 3:32

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Any solution about this, please contact me. I offer 800$ to anyone able to 
provide a solution
cashmomo@hotmail.com

Original comment by karim.as...@gmail.com on 16 Jan 2015 at 4:40

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Any one tried to take this further ?

leondefleuriot@gmail.com

Original comment by leondefl...@gmail.com on 12 Feb 2015 at 6:44