Multi-Tech Systems MT128ZLX-NT - Manual (Page 67)

MultiMobile MT128ZLX User Guide 3: Windows 98 Driver Procedures
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Switch Type: See listed options.
Phone Numbers: B1 number and B2 number.
SPID Needed only in the U.S. and Canada.
B-Channel Speed 56 kbps or 64 kbps
Voice Encoding: for Net3 or ETSI, use A-law voice encoding
for other switches, use Mu-law voice encoding
NOTE: It is essential for the proper operation of your device that this information is
entered correctly. Please take a moment to verify that the information
entered is correct.
Click OK.