On 26 January 2015 at 13:26, Brad Bendy <bb@1stclasshosting.com> wrote:
Has anyone seen issues where a end user on uVerse trying to connect to either another provider or AT&T non uVerse (in this case DIA) is having SIP blocked? SIP leaving the uVerse network going to another uVerse DSL account is fine, but it appears soon as it leave the uVerse network all SIP traffic is blocked?
I used to have AT&T U-verse a couple of years back. Never had any issues with SIP. Although I've stopped using their modem prior to starting to use SIP, directly connecting my own router to their ONT, so, I cannot comment on whether their 2Wire PoS is the cause of the issues you experience (but it's indeed quite likely so). It's worth checking with your customer whether they can throw away their modem, too. The modem has two ports -- green-coloured PHONE LINE and red-coloured BROADBAND. If they get their connection through the green PHONE LINE port, it means it's DSL. If it's through the red BROADBAND port, it means no modem is required (other than every couple of months or years for some weird port authentication that they require), and can swap their at&t PoS with any other router. C.