Pri Tandem trunking

[pandabear1]

I have a SX200 AX with two links of Pri, one to the service provider and one to a Toshiba PBX. My AX is running 5.0.2.12, calls between the two switches work great, calls from the AX to the outside world work great, the problem is when a caller from the Toshiba switch comes across the tie lines and tries to make an outside call thru the AX do not complete, what is captured on the SMDR is i.e. 9705555123, the preceding 9 is never removed and the last digit is not sent out. The normal o/g calls from the AX go out ok. I have tried deleting one and then two digits in form 22, I have tried programming a specific number in form 26 with "unknown" in the digits to follow field, same thing. Calls into the AX on the Pri and transferred across the other Pri to the Toshiba works great. My Pri trunks are programmed as T1 E&M.

Any help or ideas would be appeciated

 

[pandabear1]

I will answer my own post as I have found out more info. I had this work at other sites but had a Pri card or a NSU installed. The Pri card and NSU will accept up to 17 digits where the embedded is limited to only 10 digits.
If anyone upgrades or replaces a Pri card or NSU with the embedded this may come back and bite you.

 

[kwbMitel]

how sure are you on this?

10 digits seems absurdly low.

**********************************************
What's most important is that you realise ... There is no spoon.

 

[pandabear1]

kwbMitel I totally agree with you, that came from Mitel support who say it is documented. I did not find it but didn't look too
hard but here is the quote back from Mitel support
"ISDN BAY with the PRI Card, Release 6.0 and greater, accept up to 17 digits
Embedded T1 card is 10 digit DNIS Max"

In my testing I confirmed this but couldn't believe they would limit it to 10, but they did, "design intent" I guess.

 

[kwbMitel]

Nasty stuff, thanks for the heads up.

**********************************************
What's most important is that you realise ... There is no spoon.