This morning we started having some troubles with the voice system. We are experiencing one way audio issues.
We have the following:
CUCM6.1 --- 3560SW -- 3825(8FXO) --- PSTN
Any IP Phone connected to the 3560 switch can make calls to anywhere (internal IP or Analog extensions or PSTN), however, even if the call is connected, the person on the other side can't hear me no matter if it is another IP Phone, an analog phone connected to the VG224 or on the PSTN.
On the other hand, if I start the call on an analog phone, everything works perfectly, I can call an IP Phone and they will hear me and I will hear them. Also, if I call anyone outside on the PSTN I will hear them and they will hear me.
No changes have been made to the configurations, everything was working just fine!
Using the analyzer tool, if I enter the analog extension as caller number and an IP Phone extension as called number, I'll get a route pattern result.
If I enter an IP Phone extension as caller number and an analog extension as called number, I'll get a block pattern result.
Both, the IP and the analog extensions are within the same range 23XXX.
If I enter the IP phone extension as caller number and a PSTN number as called number, I'll also get a block pattern result.
Does anyone have an idea of what could be happening??
Thanks a lot!