Nokia

Nokia's E-series phones include WiFi capability as well as GSM mobile capability. You can use these phones with a standard GSM provider or, when near a WiFi hotspot, via WiFi, allowing you to make and receive IdeaSIP calls.

The Nokia E60 is a basic GSM mobile phone that contains a SIP softphone client on it. It's a simple, non-folding design that includes PTT.

The Nokia E65 is another SIP-capable phone from Nokia. A slightly newer model than the E60, the E65 is has a slide-out keypad, a large colour screen, and a 2 megapixel camera.

The Nokia E61i is a PDA-style GSM/SIP phone with a full qwerty keyboard, a 2 megapixel camera, and personal information manager software. It uses the second-generation of the Nokia SIP stack and, much like the E60, is available only in Europe.