[Asterisk-Users] Help! Problems talking to upstream switch

[Andy Hester]

Hi,
	Please let me know if you have any ideas - I am taking wild guesses now....
Here is the situation:

	I put in Asterisk for a local customer.  I have Fractional T-1 with 12
Voice & 12 Data.  I have a T100P hooked up to a TDM Card (they call it a
chanel bank although it only has 2 outputs) in a CAC unit.  The unit also
has a router card that runs the data side.  My extensions are all SIP phones
save a few fax machines.  The customer has 7 digit unverified account codes
on the trunks for billing purposes.

The Problem:

	As I watch the console, I see calls coming in for exten "73" or "708" or
"08" or "730" although most come in correctly (ie "7308").  My carrier has
verified numerous times that they are sending 4 digits.  I have 40 DID
numbers that need to be routed and they are all in the 73xx range.  I need
to know anything that would cause my box randomly not to hear all 4 digits
on occasion.  Also, I have had trouble with people who dial out getting a
congestion signal mainly on Long Distance numbers.  The person would dial
the number 4 or 5 times and get congestion then it might go through.  Both
of these conditions seem to be happening only about 10-20% of the time.

What I have done:

Moved a T100P card to its own IRQ to prevent problems with interrupts - Did
not solve either issue.

On the second try, got the carrier to change the way their switch chooses
channels for incoming calls to prevent "glare" - This MAY have fixed the
outgoing long distance issue as it seems to have gone away( although it
doesn't seem logical to me that this would affect only LD) but did not fix
incoming calls.

Has anyone else had problems getting all of the digits that the Telco sends?

Thanks,
Andy Hester
Consero