I've got the 8000 sample rate .wav files installed for Freeswitch. According to the logs, my SIP phone is connecting with an 8000 rate. However, when I try to play_and_get_digits using those sound files, I get errors: 2010-02-22 11:15:22.029347 [ERR] switch_core_file.c:122 Invalid file format [wav] for [/opt/freeswitch/sounds/en/us/callie/conference/8000/conf-pin.wav]! 2010-02-22 11:15:22.029347 [ERR] switch_core_file.c:122 Invalid file format [wav] for [/opt/freeswitch/sounds/en/us/callie/conference/8000/conf-bad-pin.wav]! Aren't .wav files supposed to be compatible with all codecs for playback? If not, what do I have to do to convert them to the proper formats? How do I find out what the proper formats are? -- Mark Sobkow Senior Developer MarkeTel Multi-Line Dialing Systems LTD. 428 Victoria Ave Regina, SK S4N-0P6 Toll-Free: 800-289-8616-X533 Local: 306-359-6893-X533 Fax: 306-359-6879 Email: m.sobkow@marketelsystems.com Web: http://www.marketelsystems.com