2400 BPS Pocket FaxModem (250-3105) Speaker Faxback Doc. # 5772 Your faxmodem has a speaker for monitoring dialing. Volume is controlled by using the AT Commands L1, L2, and L3 to set low, medium and high volume respectively. Your faxmodem is shipped set for medium volume. You may find it convenient to specify the speaker volume in the software initialization string. (smc-12/21/93)