[cisco-voip] 500 :Internal Server Error"

[Stephen Malenshek]

I am working with implementing Asterisk between four different AS5400's
located in multiple sites with different PSTN gateways.  I can get two
of them to work without a problem, but I am getting the following on the
others when I make a SIP call to the other two sites.

Got SIP response 500 "Internal Server Error" back from 10.1.3.28
SIP/alma-1b77 is circuit-busy
Everyone is busy/congested at this time (1:0/1/0)

The strange thing is that one of the access servers is working fine with
the exact same configs in every way.  I have moved both routers to the
same IOS version which is:

IOS (tm) 5400 Software (C5400-JS-M), Version 12.2(2)XB15

I have included a copy of the dial-peers that are specified on the
non-functional access server, and I have double checked the configs
against the circuit assignments and they are correct.

!
dial-peer voice 63201 pots
destination-pattern 632....
no digit-strip
port 1/0:0
!
dial-peer voice 63202 pots
destination-pattern 632....
no digit-strip
port 1/2:0
!
dial-peer voice 63203 pots
destination-pattern 632....
no digit-strip
port 1/3:0
!
dial-peer voice 63204 pots
destination-pattern 632....
no digit-strip
port 1/4:0
!
dial-peer voice 63401 pots
destination-pattern 634....
no digit-strip
port 1/5:0
!
dial-peer voice 63402 pots
destination-pattern 634....
no digit-strip
port 1/6:0
!
dial-peer voice 99701 pots
destination-pattern 997....
no digit-strip
port 1/0:0
!
dial-peer voice 99702 pots
destination-pattern 997....
no digit-strip
port 1/2:0
!
dial-peer voice 99703 pots
destination-pattern 997....
no digit-strip
port 1/3:0
!
dial-peer voice 99704 pots
destination-pattern 997....
no digit-strip
port 1/4:0
!
dial-peer voice 43001 pots
destination-pattern 430....
no digit-strip
port 1/0:0
!
dial-peer voice 43002 pots
destination-pattern 430....
no digit-strip
port 1/2:0
!
dial-peer voice 43003 pots
destination-pattern 430....
no digit-strip
port 1/3:0
!
dial-peer voice 43004 pots
destination-pattern 430....
no digit-strip
port 1/4:0
!
dial-peer voice 67001 pots
destination-pattern 670....
no digit-strip
port 1/0:0
!
dial-peer voice 67002 pots
destination-pattern 670....
no digit-strip
port 1/2:0
!
dial-peer voice 67003 pots
destination-pattern 670....
no digit-strip
port 1/3:0
!
dial-peer voice 67004 pots
destination-pattern 670....
no digit-strip
port 1/4:0
!
sip-ua
max-forwards 15
retry invite 10
timers trying 1000
timers expires 300000
sip-server ipv4:XXX.XXX.XXX.XXX:5060
no transport tcp
!

The only difference that I can see is that the non-functional access
server is 3 hops from the VoIP server and the ones that are functional
are only 2 hops....  I do not think this makes any difference, but I
thought I would include it.

Thanks for all your assistance in advance.

Stephen
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