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SIP softphone stopped working

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Sprint Social Care

SIP softphone stopped working

Hi there! I have a case:

Customer can no longer use the SIP softphone on his smartphone to make VOIP calls on the Sprint network. He can when he's using his smartphone connected to his home WiFi. Has Sprint started blocking on its network the TCP/UDP ports associated with SIP/VOIP?

He got it set up/configured and working. He was able to make SIP/VOIP calls over the Sprint network, but that has stopped working recently.

It uses UDP Port 5060 to contact the server.

According to him, he installed the latest updates to his iPhone XS. He still cannot make VOIP calls unless he's on his home Wi-Fi.


Ciara
Sprint Social Care
1 REPLY 1
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Community Manager

Re: SIP softphone stopped working

We can only troubleshoot what we are responsible for and that's the Sprint service.  So, as long as he can make/receive calls on Sprint and can surf on Sprint, that is scope of our troubleshooting.  If he is having problems with a third party SIP service, he would need to contact them.

 


@Sprint_Ciara wrote:

Hi there! I have a case:

Customer can no longer use the SIP softphone on his smartphone to make VOIP calls on the Sprint network. He can when he's using his smartphone connected to his home WiFi. Has Sprint started blocking on its network the TCP/UDP ports associated with SIP/VOIP?

He got it set up/configured and working. He was able to make SIP/VOIP calls over the Sprint network, but that has stopped working recently.

It uses UDP Port 5060 to contact the server.

According to him, he installed the latest updates to his iPhone XS. He still cannot make VOIP calls unless he's on his home Wi-Fi.


 

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