Failed to Create Media Streams (29) Error on T-Mobile

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T-Mobile Blocks SIP Protocol Transmissions on port numbers 5060 or 5061

This is a well known problem with t-Moble since firmware version 27.x and I have been trying to reach out to them for nearly two months to get this resolved .. see here 

We are moving all our business lines off of t-mobile back to verizon because of this and I suggest you do the same so they can learn to stop blocking SIP ports on their network. 

asked Feb 17, 2017 in iOS by Will R Perrie (120 points)  

1 Answer

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answered Apr 3, 2017 by Ivan (18,370 points)  
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