[cisco-voip] Audio not working on 7940

[Ken Ryan]

Very simple config not working; 2620xm, CME 4.1, fxo card, 2 7940's.  Dialing extension to extension works fine.  Dialing to fxo and I can't hear anything through the speaker or headset.  Oddly, if I can leave myself a voice-mail on my cell phone voicemail from the 7940 and listen to it from my cell phone.
...
voice-port 1/0/0
voice-port 1/0/1
voice-port 1/1/0
voice-port 1/1/1
...
dial-peer voice 1 pots
 incoming called-number {hidden}
 no digit-strip
 port 1/0/0
!
dial-peer voice 2 pots
 destination-pattern .T
 port 1/0/0
 forward-digits all
!
...
!
telephony-service
 max-ephones 2
 max-dn 4
 ip source-address 10.90.0.1 port 2000
 auto assign 1 to 2
 max-conferences 4 gain -6
 web admin system name admin password {hidden}
 transfer-system full-consult
 create cnf-files version-stamp Jan 01 2002 00:00:00
!
...
!
ephone-dn  1  dual-line
 number 100
!
!
ephone-dn  2  dual-line
 number 101
!
!
ephone-dn  3  dual-line
!
!
ephone  1
 no multicast-moh
 mac-address 0012.8055.BFD1
 keepalive 30 auxiliary 0
 type 7940
 button  1:1
!
!
!
ephone  2
 no multicast-moh
 keepalive 30 auxiliary 0
!
...
Thanks for reading/helping...
Ken