We are looking at options for a deployment where the customer has a Avaya PABX and connected to the CCM Express. We are looking at providing an Mobile IP Phone which would support SCCP/SIP (to talk to the CCM Express) and also can be used as a mobile phone at 3G/GSM networks. This is in New Zealand. I don't think Cisco has any such products (7920 is not supported in NZ).
Has anybody seen any other product that can be used for this deployment?
Thanks for your help