See Below, I was given this at Mitel in Caldicott in Wales, worked a treat for me.
Obviously you need to do this on both boxes.
Sip Trunks Mitel to Mitel
1.
Network Elements Form
Create new element,
Type is Other
Name (remote site)
Ip Adrress of remote site
Tick sip peer box, this opens more options
Sip Transport UDP
Sip Peer port 5060
2.
Trunk Attributes Form (Trunk Service Number)
Change spare trunk service and add name Sip Trunks.
incoming digit modification – absorb 0 if required.
3.
Sip Peer Profile Form
Add new profile
Enter name
Click Ip address local site (local 3300)
Set Max simultaneous call (number of trunks)
Enter new Tk service number (From 2. above)
Change session timer to 0, (last entry on form)
Leave all other settings as default.
4.
ARS routes
Change spare route,
Routing medium to Sip Trunk
Change Sip peer profile to new one created (3. above)
Change digit mod to required (do nothing in our case, check entries in (Dig Mod Table)).
Digits before outpulsing, modify to digit length.
5.
ARS Digit Dialled
Add digits
Add Digits to Follow
Term Type is Route
Termination Number is the route configured in ARS (4. above)
Steve
!ExtraDunce