Dear Sir;

Although this configuration is a non-standard and non-supported configuration, we know it works for:

- Registration

- Basic calls

- Basic SIP supplementary services: Call forward, transfer, conferencing, hold/unhold

Some info about configuration know to work:

- MOH must be selected unicast for these phones as multicast does not work.

- CCM - The Show call forwarding settings must be set to no, to avoid conflicts

- In conferencing, there is no music or tone for hold party during the conference setting.

Regards

Alberto