DTMF detection on a cellular/mobile phone

Dear Sir or Madam, I am looking for a cellular/mobile phone which can do DTMF detection of incoming tones. To find out if a phone is capable of doing this you need to connect a phone with a computer using a data cable then open Windows Hyper Terminal and send some AT commands: **AT** (Should respond "OK") **AT+FCLASS=?** (Should respond **(0, 1, 2, 4, 8, 80)** or a different combination of these numbers.) Here's what the numbers mean... 0 = DATA which for a phone that even answers to AT commands, should be listed as these commands ARE data. 1 = Old-Style FAX format 2 = Newer styled FAX format 4 = Synthetic FAX format using DATA translation 8 = Voice capabilities for version 2.1 or earlier (v.90 or older) 80 = VoiceMax - Experimental compression codec I am looking for a phone which has **8** or/and **80** FCLASS which means that the phone supports Voice commands and can do DTMF detection. It's OK if you find only one phone. The phone has to be inexpensive (less than $200 on eBay). The phone has to support dual band GSM 900/1800 (European standard) or triple band GSM 800/900/1800/1900 (American + European standard) frequencies. Kind Regards, Alexander ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform MS Windows PC IBM compatible