Hi,
Well the set up is
1 X ISDN + 1 X Sip trunk from provided terminate on to a Sonus SBC.
this in turn has one ISDN30 to Mitel (this ISDN use to go out direct to supplier now the Sonus sits in between) and one sip to Lync.
This is what I see,
When I make a call from Mitel system to another Mitel system then the caller is displayed on the hand set.
When I am a call out from the Mitel system to the Lync or external number, on the Sonus logs I see the callingID as jsut "-"
When I make a call from External/Lync to Mitel i see on the Sonus logs both a calling and called ID sent out the ISDN to the Mitel, but I don't see this on the handset.
What I want is when a mitel user calls a Lync user or Lync calls Mitel, either system shows the extension it is coming from. But on the Mitel system it seems apart from mitel to mitle calls every thing comming in or out the ISDN has its calling ID stripped. So I jsut want the Mitel to always display/send the calling ID and I will block it as needed on the Sonus.