SBC with Saudi Telecom

[elmag]

Hi All,

I'm connected to Saudi Telecom "STC" through Avaya SBC using SIP trunk, I can call out normally, but some numbers aren't working. I'm facing this in more than one location.

Anyone knows or had an experience with a situation like this?

Thanks

[mlombardi1]

SIP is very much an open standard and implementations vary wildly. I suggest working with the service provider to determine where the problem is.