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- The best tested and most capable phones (the Gold Standard) with sipXecs are the Polycom SoundPoint and SoundStation SIP phones. For a quick start please consult Polycom SoundPoint IP 550, 650, and 670 end user guide.
- The next best solution are Nortel 12xx phones or phones from SNOM.
- Other phones with a reasonable feature set include Grandstream, Aastra, Snom and AastraYealink.
- Counterpath softphones are tested well and work, especially the commercial versions.
- The Twinkle (http:://www.twinklephone.com) soft phone on Linux works well.
The latest recommended Polycom firmware release 3.1.3c now offers full support for Music On Hold and Busy Lamp in conjunction with sipXecs. This firmware release is fully supported plug & play in releases 3.10.3 and 4+ of sipXecsJust because configuration support exists in sipXecs does not indicate that all system features will work with that phone.