DEFINITIONS ----------- NOTE: Most manufacturers use a "1" to enable and a "0" to disable options, there are some exceptions and these are noted within the specific phone's file. ACCOLC ACCESS OVERLOAD CLASS A two digit field used by the Cellular carriers to determine who has priority access in the event of an emergency. This has not been widely implemented and the suggested entry is 0 and the last digit of the telephone number for general subscribers. EE END TO END A single digit (1 bit) entry that determines whether DTMF tones ("Touch Tones") are transmitted over the voice channel to allow access to remote services. Set to "1" under normal circumstances. GIM GROUP IDENTIFICATION A two digit/four bit field that determines how much of the SIDH is used to identify when the mobile is roaming. This number is normally 10 in the USA. HA HORN ALERT A single digit (1 bit) entry that enables the horn alert on mobile phones. When enabled ("1") most mobiles will send a ground pulse to the horn alert connector (usually a wire in the power cable) during the first few rings. This is designed to honk the horn or flash the lights, a relay must be used to avoid damage to the phone as the output pulse is low current. HF HANDS FREE A single digit (1 bit) entry that enables the hands free feature on phones so equipped. IPCH INITIAL PAGING CHANNEL A three digit number indicating the initial paging channel, normally set to 333 for non-wireline (A) and 334 for wireline (B) systems. A leading zero is common in this field. LU LOCAL USE MARK A single digit (1 bit) field that determines whether the phone transmits registration information as soon as it powers up, usually set to "1". MIN MOBILE IDENTIFICATION NUMBER This is in fact two entries, MIN1 and MIN2. MIN2 is the three digit area code and MIN1 is the seven digit phone number. On most newer phones this is entered as one ten digit number and is rarely referred to as MIN1 and MIN2. MM MIN MARK A single digit (1 bit) entry that determines whether the phone transmits the area code when accessing the system, usually set to "1". PS PREFERRED SYSTEM A single digit (1 bit) entry that determines whether the mobile scans channels 1 through 333 for the "A" system, or channels 334 through 666 for the "B" system. Set to "0" for A, and "1" for B system. This entry should match the last digit of the SIDH (see below). REP REPERTORY A single digit (1 bit) entry that enables repertory memory (speed dialing), normally set to "1". RM RADIO MUTE A single digit (1 bit) entry that enables the radio mute feature on mobiles so equipped. Generally only available when the horn alert feature is disabled as the radio mute often uses the same wire as the horn alert. When enabled the radio mute wire/connector will go to ground when the phone is in use. Use this ground to turn off or mute the car stereo, as with horn alert use a relay. SCM STATION CLASS MARK A 4 bit binary, 2 digit decimal field that designates the power output, number of channels and whether the phone is capable of VOX operation (voice operated, or push to talk transmission. Saves battery life on portables, only relevant when the Cellular system supports this feature). The most common entries for this field are: BINARY DECIMAL # OF CHANNELS POWER OUTPUT VOX 0000 00 666 3 NO 0010 02 666 .6 NO 0100 04 666 3 YES 0110 06 666 .6 YES * 1000 08 832 3 NO ** 1010 10 832 .6 NO 1100 12 832 3 YES 1110 14 832 .6 YES * Most common for all newer mobile phones. ** Most common for all newer portable phones. SIDH SYSTEM IDENTIFICATION (for) HOME SYSTEM A five digit decimal number that is specified by the system operator. The last digit corresponds to the Preferred System mark 0 or 1 (see above). COPYRIGHT 1993 CALIFORNIA GRAPEVINE COMMUNICATIONS QUESTIONS? TEL: (714) 643-8426 FAX: (714)643-8379