How to use alternatively a line from two E1 trunks

[dmarjolin]

Hello

I have two ISDN E1 lines (from two different providers for redundancy purposes) linked to two PRA-T2 modules in my PABX and would like to kind of balance outgoing calls on these two lines. Any suggestion welcome.
Thanks

D.

[vad]

If you need to have to separated TG (f.e. for DID transcoding/incoming calls, calling number building/outgoing call).
Manage two entity for caller and outgoing call via ARS. For one entity TG1 and TG2, for another entity TG2 and TG1 (different ARS lists with different time-based route list order).