Mitel 3300 ICP and Polycom IP7000

It was a tough day for a me to plug IP 7000 on Mitel 3300 ICP. Even though mitel support the SIP protocols, it was not just a plug and play game.

Steps are pretty simple

1. Go to ' Licensing and Option Selection' of controller - Make sure that you have enough SIP licenses on Mitel ICP
2. Multiline IP set configuration - Add a new device as 'Generic SIP' - Include a security pin number and intended Phone number
3. Next one is a tedious task - Create a "Class of Service Assignment" - Need to spend some time on this to enable the features needed for your phone. Few docs are available on Mitel site for this.
4. Then do some adjustments in "Sip Device Capability assignment" - There is a catch here! If you are not using the latest ICP version (Above 9.0), you will not be seeing all the SIP features avaiable on IP 7000. I had tough time while configuring IP 7000 for multi line conferencing capability because of the unavailable options on the older version.
Disable Reliable Provisional Responses (Yes)

Force sending SDP in initial Invite message (Yes)
Suppress Use of SDP Inactive Media Streams (No)
Renegotiate SDP To Enforce Symmetric Codec (No)
Allow Device To Use Multiple Active M-Lines (Yes) --> This option need to be enabled (which is available on 9.0 UR1 version)

5. "Multi Line Set Key Assignment" - To configure multiple lines on the phone - a straight forward process.
6. "Station Service Assignment" - Assign the configured "Sip Capabilities" to the newly configured device
7. Boot up IP7000
Go to the Status and TCP Parameters and find the IP of the device.
Access the Device using http://x.x.x.x and follow the simple configuration available on Polycom Site
8. Change the dial plan if necessary to match your ICP settings

www.polycom.com/global/documents/support/setup_maintenance/products/voice/soundstation_ip_7000_qsg_english_rev_b.pdf

It is bit more tougher than these simple steps...;) ..
Enjooy.