I have a 7200-S with 3 OAS cars. system has 40 Ip phones and 12 Sip lines. I have a little problem with OAS set up in 2.2.2. My mp20s has 6 MGI and all my OAS are set for MGI also. What would be the RTP starting ports on MPS, OAS1, OAS2 and 3? Also what would i be using for MGI port forwarding on my router?

Thank you

Well if you're not licensed to use the MGI ports on the processor then erase the 30000 in the port section for it. OAS 1 would be setup as 30000, OAS 2 would be 30033, OAS 3 would be 30065 as the beginning ports. Same for the MPS you start OAS 1 at 40000, OAS 2 40065, OAS 3 40129. This will tell each card it's start range. Then in port forwarding you'd do 30000-30032 forward to IP of OAS 1, 40000-40064 to IP of OAS 1, then follow suit for the next 2 cards. 30000 ports is for MGI, 40000 is for MPS.

Thank you fr your reply. I have MGI licences for the base mP card too. How many MPS on mp20S?

There are 16 ports of MPS on the processor. Therefore if you are starting at the processor you would go 40000-40031 to ip of processor, then 40032-40159 to OAS 1 ip... Adding 128 So on to cover your other cards. On the OAS card there are 128 MPS ports that need to forward. I mislead on my numbers from earlier.

As for your MGI ports on the processor, you only have 6 so that would be 30000-30011. There are 16 ports on the OAS so then it would follow as such, 30012-30027 for OAS 1... Then continue to follow for the other cards.