I broke down and bought the above mentioned card with 2 FXO modules for my two POTS lines. I installed Asterisk@Home 1.5 on a spare box here in the office as a test-bed. The issue I’m having occurs when trying to place an outgoing call and has been replicated using both a Grandstream GXP-2000 IP Phone as well as a Grandstream HT-286 Analog Adapter (so I know it’s not just the phone that I’m using).
About 50% of the time when making an outgoing call, the phone rings 1-2 times and then I end up getting a message that states “Your call cannot be completed as dialed. If you dialed the 5 digit code, it has changed. Please redial, adding a 1 and a 0 in front of the 5 digit code. Or for assistance, contact the carrier you are trying to use.”
Has anyone else come across this issue? Any ideas on how to get this thing to actually reliably let me make a phone call?
Another issue I’m having is with the GXP-2000 phone. After each reboot the handset gets very quiet. The only fix I’ve found is to press teh “Speaker” button and then to pickup the handset. Doing this once dramatically increases the handset and ring volume and you only seem to have to do it once after a reboot. My phone has the newest firmware available.