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[Q] Problems making SIP calls on TMO's $30/100 minutes plan

OP lchiu7

15th January 2014, 10:46 PM   |  #1  
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I visit the US regularly and always pop my trusty TMO SIM into my current phone and take advantage of the data plan to make SIP calls and get over the 100 minutes limit.

I might use one of Vonage, Google Voice Callback (with a Callcentric SIP account as the callback number) Localphone or GrooveIP.

This worked fine on my last trip in August last year on my GN.

This time I found I could not make any SIP calls over the 3G network (no LTE because my phone is the international version of the N5). Calls would be placed only to be greeted with silence and GV callback would never call me back. The only method that worked was GrooveIP but apparently that's going to stop soon because of the way Google manages some API with Google Voice.

All the processes worked fine over WiFi.

Just to check I tried my daughter's N4 on the same plan and she could make all those calls without any problem.

I see TMO has blocked tethering on the N5 which can be overcome through Root and modifying some file but does anybody know if TMO has also blocked SIP calls on the N5 also?

Might have to take my GN with me next time as my US phone and keep the N5 with the home SIM card in it.

Thanks
15th January 2014, 11:41 PM   |  #2  
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Quote:
Originally Posted by lchiu7

I visit the US regularly and always pop my trusty TMO SIM into my current phone and take advantage of the data plan to make SIP calls and get over the 100 minutes limit.

I might use one of Vonage, Google Voice Callback (with a Callcentric SIP account as the callback number) Localphone or GrooveIP.

This worked fine on my last trip in August last year on my GN.

This time I found I could not make any SIP calls over the 3G network (no LTE because my phone is the international version of the N5). Calls would be placed only to be greeted with silence and GV callback would never call me back. The only method that worked was GrooveIP but apparently that's going to stop soon because of the way Google manages some API with Google Voice.

All the processes worked fine over WiFi.

Just to check I tried my daughter's N4 on the same plan and she could make all those calls without any problem.

I see TMO has blocked tethering on the N5 which can be overcome through Root and modifying some file but does anybody know if TMO has also blocked SIP calls on the N5 also?

Might have to take my GN with me next time as my US phone and keep the N5 with the home SIM card in it.

Thanks

tmobile didnt block tethering on the n5, i tether my other devices and tablet to it frequently. but tethering is a paid service with tmobile(free unlimited on all plans except the completely unlimited high speed data plan, 2.5gb of tethering comes with that plan). but tmobile wifi calling does not work on the n5.
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