Can't Hear the caller - New User

[brmstech]

Wondering if anyone can help? The problem that I have is that when some one calls in and we pick up the phone, we can't hear them on the other end. But the funny thing is they can hear us. This line is a backup phone for our cells and is not used all the time. This problem only seems to happen when the line isn't used for a day or so. It is almost like the VOIPo line has to be woken up ( just a guessing ). This happens both on the base set phone and the extender phone.




Modem -> hub -> GrandStream -> AT&T wireless phone