[cisco-voip] PSTN connection terminated before error message

[Mike Armstrong]

A user here inadvertently dialed a number in the same area code, but outside 
the local calling area -- i.e., she dialed 94411244 when she should have 
dialed 818634411244.  (9-local, 8-LD).  As soon as ring tone was heard on 
the 7940, the screen was wiped to an on-hook indication.  Placing the same 
call on a directly connect PSTN station, you hear ring tone, then the 
intercept tones, then a message: "Your long-distance carrier cannot 
completeyour call as dialed...".  Is there any way to configure CallManager 
(or, more likely, the router) to maintain the connection so that the user 
will hear the error message?  This is, of course, repeatable, so I can get 
traces if needed.

CCM 4.1(3)SR2
3640 c3640-is-mz.123-8.T5.bin
H.323, PRI to Verizon

Possibly relevant config snippets:

interface Serial1/0:23
 no ip address
 no logging event link-status
 isdn switch-type primary-ni
 isdn incoming-voice voice
 isdn map address ^9[2-9]......$ plan unknown type unknown
 isdn map address ^9[2-9].........$ plan unknown type unknown
 isdn map address ^91[2-9].........$ plan unknown type unknown
 isdn map address ^9[49]11$ plan unknown type unknown
 isdn map address ^9011 plan unknown type unknown
 isdn map address ^81[2-9].........$ plan unknown type unknown
!
voice-port 1/0:23
 bearer-cap Speech
!
dial-peer voice 1023907 pots
 destination-pattern 9[2-9]......$
 port 1/0:23
 forward-digits all
!

Mike Armstrong
UF/IFAS CREC
Lake Alfred, FL