[VoiceOps] T-Mobile goes straight to voicemail

[Darren Schreiber]

Hello,
We've discovered that our VoIP calls, via provider X, go directly to voicemail for any T-Mobile customers called. Calls via Skype ring the phone, as do landlines. This is reproducible – happens every time.

Anyone seen this & have any ideas on the cause? I've confirmed we're setting Caller ID and ANI information correctly on our side, I believe anyway. But generally speaking how would a call even terminate at T-Mobile but not ring the phone? Seems od…

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[cid:85F2F091-9DE6-4FBD-B9CF-56F9E8CF03C2]
Darren Schreiber
CEO / Co-Founder


 visit: www.2600hz.com<http://www.2600hz.com/>
 sip:darren at 2600hz.com
 tel: 415-886-7901
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