Techworld reviews the Polycom SoundPoint IP 650 SIP Desk Phone and writes, “The Polycom SoundPoint IP 650 is a solid, well-rounded VoIP handset that will not disappoint. At $449 (£225) MSRP, it’s also cheaper than many high-end VoIP phones.”
Link.

Well, the AT-530 IP Phone pretty much looks like any other phone you might see in an office in the past three decades. But it does offer these snazzy features:
* can support two sip accounts at same time
* NAT, Firewall
* DHCP client and server
* supports PPPoE, (used for ADSL, cable modem connecting)
* G.165 compliant […]

The SysMaster Tornado M20 is a four-line VoIP phone that offers the following features:
* 3.5-inch LCD
* webcam
* video conferencing
* IPTV
* video- / audio-on-demand
* internet radio
* voicemail
* email / chat / news / local weather information
* dual-core processor
* 32MB of RAM
* 32MB of flash memory
* integrated Ethernet jack
* WiFi
* RCA audio outs
* Linux-powered UI
Source.

The Xcelerator IP is a a telephone, router, firewall and wireless access point in one package, and offers the following features:
* supports up to eight VoIP SIP trunk connections via a single WAN/RJ45 port and three FXO PSTN trunk connections
* one FXS port
* four 10/100 ethernet ports
* integrated 802.11g wireless access point
* four dedicated line […]

The F3000 is a residential Wi-Fi handset and offers the following features:
* Clamshell Type Design
* 65K CSTN 1.8”, 128×160 pixels
* 802.11b/g
* VoIP supported
* SIP (Session Initiation Protocol)
* SDP (Session Description Protocol)
* RTP/RTCP
*RFC 2833/Inband DTMF
* Earphone supported
* Polyphonic ringtones
* Voicemail indication
Source.

The Samsung SPH-M8100 is a WiMAX slider phone featuring SIP-based services, including:
* VoIP calls
* video-conferencing
* “Push-to-All”
The phone is a Pocket PC running Windows Mobile 5.0, and features a 2 megapixel camera as well as a VGA camera for video conferencing, a 2.8-inch 65k color, 240×320 touchscreen TFT display and T-DMB mobile TV.
Via EngadgetMobile.

The D-Link V-Click dual-mode VoIP phone lets you switch between your tri-band 900/1800/1900MHz GSM/GPRS network and 802.11 WiFi.
The SIP-based V-Click also features a 176×220 pixel display.
Via EngadgetMobile.

The Paragon Hipi 2200 is a quad-band GSM smartphone that’s also a SIP-based handset. Features include:
* Windows Mobile 5.0
* quad-band GSM (850/900/1800/1900) and Class-10 GPRS
* 802.11g WLAN support
* SIP-based VoIP functionality over WLAN
* more than 4 hour talk time, 3-4 hours for VoIP call and 6-7 hours for GSM
* up to100 hour standby time with […]

The hipi-2200 is the next generation in integrated dual-mode handsets. Utilizing Paragon Wireless’ proven VoWLAN/GSM dual-mode voice technology, the hipi-2200 adds the Windows Mobile 5.0® operating system to further expand the usability and functionality of this extremely versatile handset. With the built in support for email, web browsing, the MP3/MP4 player and the camcorder/recorder on a Windows Mobile® platform, users can access the Internet, listen to music and take and review pictures all from one easily carried handset, that also serves as their mobile phone. The 1100mAh Li-ion battery offers users up to 4 hours of talk time or 100 hours of standby time, with both GSM and WiFi radios simultaneously active, making the hipi-2200 the only handset users need to carry.

The 3Com 3108 VoIP phone is a SIP-based phone that’s recently been approved by the FCC.
It features:
* 1.8-inch color LCD
* 2.4GHz external antenna
* 65-165 feet range indoors, 820-feet range outdoors in line-of-sight
Via Engadget.