Number identification from Panasonic to Alcatel

[m_bakhranov1985]

Hello all
There are two nodes, A and B, in our organization, connected via a 30 channel T2 flow. Node A is Alcatel Enterprise, the B one is Panasonic KX-TDE600. The internal numbering plan of node A is of 7 digits in 448xxxx form, while that of node B is of 4 digits in zzzz form. Calls from within node B to external operators pass through node A. The problem is that when a call is made from within node B to external numbers, a 4-digit number is passed onto the channel, while it has to be a 7-digit number in 448zzzz form.(4 digits prefixed with 448)
On node A, I tried transforming incoming calls from node B to 7 digit form and then passing forward, no results. On node B, I also tried prefixing with 448 outgoing numbers to T2, still no use.
Also, with local calls between the two nodes, node B passes 7 digits, but node A accepts only last 4 digits. The node A passes 7 digits, and node B sees all 7. Is it possible to resolve the issue when connecting Alcatel with Panasonic? When to look for the problem?
Thanks in advance

[tot3nkopf]

This is not a problem specific to Alcatel or Panasonic. This is a configuration issue. As a general rule (as Alcatel is not a transit PBX -and I think Panasonic is not either) the PBX which initiates the call is responsible for passing the user number and called number in the format that the other PBX requires for processing the transit call.

Ex:
Noda A has the public trunks. The seizure for ext calling is 0. Expected user number in public network is 1xxx.
Node B is lined to A via ISDN link (by the way Alcatel supports QSIG GF --> enabling for example name exchange).

To dial externally from B, B has to send the user number 1xxx and the external number 0 + ext number to A. If the user is 7777777 in PBX B, his number has to be translated (DDI translation) to 17777 (for example) and also pbx B has to add a 0 in front of the ext number when it sends it to A.

[m_bakhranov1985]

Hello tot3nkopf,
Thank you for the response. In our case, node A is set to protocol ABC-F, and node B is set to QSIG. Node A is the master while node B is the slave.
Also when trying prefixing with 448 outgoing numbers on node B, we can observe from the trace that the outgoing number has indeed been transformed to 448xxxx.
Do we have to set node B to prefix ext number with a digit (like 0 in your example) when sending to node A, if local (within node A) and ext calls already work? Or is this prefix needed for our 7-digit number to be identified in full?

[tot3nkopf]

So in panasonic you need to have two routes on which you have two DDI translator rules:
1. private calls --> DDI translator table with 1xxx
2. Outgoing calls through A (do not forget to append the node A ars prefix in front of the external number) --> DDI translator table 448xxx