I have a new customer connected to my FreePBX. I have several Grandstream GXW4248’s connected to my PBX from several remote properties. I have had this setup for almost 2 years without any issues but just added a customer who has an Avaya phone system to the Grandstream (analog ATA). I am having an issue where the customer can NOT get into the VM from their phones on the Avaya. After some diagnostics I can see that the VM is not getting any digits and just says wrong password to everything. If I turn off password required from same extension they can get into VM but then cant do anything. It doesn’t hear any digits including the # although I have no problem dialing the *97 to get into VM in the first place? Makes no sense. As soon as the VM picks up the dialing stops working? Any suggestions on how to fix this? I thought that maybe it was the Avaya blocking dialing after the call is established but the customer says they had Verizon voicemail on the old trunks which they had no issues accessing.
I have this setup with 3 analog lines on the GXW4248 in a hunt group connected to CO lines 1, 2 and 3 on the Avaya. If I call the main number from my phone (in my office voip phone externally) or a cell phone via the 10 digit external number I have no problems accessing the VM.
When I press the digits on the Avaya phone I do hear them. I though maybe they were too short but I tried pressing them longer as well and it didn’t make a difference.
Voicemail126.96.36.199 Stable and up to date