[Asterisk-Users] VoicemailMain can't read from phone keyboard!

[Steven Wang]

Hello

I try to set up voicemails for extension. When VoicemailMain gets called, it
prompts for mailbox and password. It seems not able to read from the phone.
So the authentication always fails.

I desparately need help to understand what is wrong. Here is a part of my
extensions.conf:
exten => _8500, 1, Wait(2)
exten => _8500, 2, VoicemailMain(${CALLERIDNUM})
exten => _8500, 3, Hangup

thanks!
steven