atcomsystems.ca/forum Forums TDM Business Telephone Systems NEC Telephones & Systems Incoming Callson SV8100 from SL1000 SIP Trunk

Hi guys, this is my first time here, and hope find some help, rsrs, and help too.

I need to set up two systems, 1 SL1000 and 1 SV8100, using SIP Trunks. The problem is, the 2 systems have to do a tandem connection, in both sides. To perform this operation, I'm using Sip Trunks as Tie-Lines. Everything is ok, I can make calls from any side through the other, but I can't call the extension using DID translation. the main problem is: final project uses 3 SV8100 and 31 SL100, and we must to create a "routing table", as we've noticed different sites have the same extension range. I'm using the code, e.g: #412000 ( # + site (xx) + ST ), delete 2 digits and send 12000 to the other system, by program 10-23. There, I have to analyze 12000 and route this call to ST 2000, or delete digit 1. This operation works well when using DID trunks, but not using Tie Line trunks.

Thanks

I don't have 2 switch but just wonder if you can do a proof of concept with DID -> VE -> CFW all tru SIP tie trunk to second switch . Second switch take the incoming and manupulate and send to destination ext or VE ? It might be not practical if you have large DID block though.

Madwok, I'm using this programming. it works, but I'm looking for a "cleaner" solution. But thanks anyway.

Hi Fabio, you will be restricted by the small DDI translation table on the SL1100, but don't forget you should be able to use a wild card in the DDI translation table, perhaps if you configure 22-11 as below this would work for you?

22-11-01 = 12@@@
22-11-03 = 2@@@

When DDI 12002 for example is received it should goto extension 2002.

This will allow you to use f-route to send the appropriate digits to the SIP trunks which will then be analysed by 10-23.

If you really wanted to use tie lines then you could setup f-route in your numbering plan, so that the received digits are treated, then dialled internally.