cucm sip trunk to other cucm with multiple prefixes on same trunk

[carl_townshend]

Hi All

I wish to send some number ranges 8812-8816 across to a sip trunk to another cucm cluster.

what is the best way of doing this? adding them in a route list or not?

Also, as the numbers come in from the other side, we prefix them on the trunk, however it looks like you can only do 1 incoming prefix per trunk, is this right?

when I tried to add other trunk to get around this, it does not let me add the same IP addresses, however this needs to be the case as they all come from the same cucm cluster.

cheers

[Jaime Valencia]

You might want to explain the detailed call flow you have.

[carl_townshend]

Hi
we need to route 8810XXXX, 8811XXXX and 8812XXXX going to a cluster supporting 3 different sites in Europe, For them to dial us they dial 8801XXXX.
Do we need to just create 1 SIP trunk for this?
before they were 3 different phone systems so we prefixed on our side as they come in.
It is now one phone system the other side so you can only apply 1 prefix per trunk on our side as they come in.
Do we need them to prefix there calling ID as they send to us over 1 trunk?