Motorola P7689, Service Manual, Page: 57 / 59

of 59 GSM Field Service Support 57
P7689 / P7789
HPLMN Home PLMN
HPU Hand Portable Unit
HR Half Rate
HSN Hopping Sequence Number
I Information (frames)
IA5 International Alphanumeric 5
ID Identification
IMEI International Mobile Equipment Identity
IMM Immediate assignment message
IMSI International Mobile Subscriber Identity
IN Intelligent Network
INDY Iridium 9500 handset
IrDA Infra Red Data Association
ISC International Switching Center
ISU Iridium Subscriber Unit
ISDN Integrated Services Digital Network
ISUP ISDN User Part
IWF Interworking Function
Kc ciphering Key
Ki Individual subscriber authentication key
LAC Location Area Code
LAI Location Area Identification (Identity)
LAPB Link Access Procedure ‘B’ (balanced) channel
LAPDm Link Access Procedure ‘DM’ (mobile ‘D’) channel
Lm Traffic channel (with capacity lower than Bm)
LPC Linear Predictive Code
LR Location Register
MA Mobile Allocation
MAH Mobile Access Hunting
MAI Mobile Allocation Index
MAIO Mobile Allocation Index Offset
MAP Mobile Application Part
MCC Mobile Country Code
MCI Malicious Call Identification
MD Mediation Device
ME Mobile Equipment
MF Multi-Frequency (tone signaling type)
MLSE Maximum Likelihood Sequence Estimator
MM Mobility Management
MMI Man Machine Interface
MNC Mobile Network Code
MO Mobile Originated
MO/PP Mobile Originated Point to Point messages
MoU Memorandum of Understanding
MRN Mobile Roaming Number
MS Mobile Station
MSC Mobile Services Switching Center
MSCM Mobile Station Class Mark
MSIN Mobile Station Identification Number
MSISDN Mobile Station international ISDN number
MSRN Mobile Station Roaming Number
MT Mobile Termination
MTP Message Transfer Part
MT/PP Mobile Terminated Point to Point messages