\newacronym{ms}{MS}{Mobile Station} \newacronym{gsm}{GSM}{Global System for Mobile Communications} \newacronym{cept}{CEPT}{Conf\'{e}rence Europ\'{e}enne des Administrations des Postes et des T\'{e}l\'{e}communications} \newacronym{etsi}{ETSI}{European Communication Standards Institute} \newacronym{dcs1800}{DCS1800}{Digital Cellular System 1800} \newacronym{tacs}{TACS}{Total Access Communication System} \newacronym{nmt}{NMT}{Northern Telecomunication} \newacronym{stc}{STC}{Sub Technical Committee} \newacronym{MoU}{MoU}{Memorandum of Understanding} \newacronym{3gpp}{3GPP}{Third Generation Partnership Project} \newacronym{arib}{ARIB}{Association of Radio Industries and Businesses} \newacronym{atis}{ATIS}{Alliance for Telecommunications Industry Solutions} \newacronym{tta}{TTA}{Telecommunications Technology Association} \newacronym{ttc}{TTC}{Telecommunications Technology Committee} \newacronym{itu}{ITU}{International Telecomunication Union} \newacronym{gprs}{GPRS}{General Packet Radio Service} \newacronym{edge}{EDGE}{Enhanced Data Rates for GSM Evolution} \newacronym{hsdpa}{HSDPA}{High Speed Downlink Packet Access} \newacronym{hsupa}{HSUPA}{High Speed Uplink Packet Access} \newacronym{hspa}{HSPA}{High Speed Packet Access} \newacronym{umts}{UMTS}{Universal Mobile Telecomunications System} \newacronym{nss}{NSS}{Network Subsystem} \newacronym{bss}{BSS}{Basestation Subsystem} \newacronym{in}{IN}{Intelligent Network Subsystem} \newacronym{oms}{OMS}{Operation and Maintainance Subsystem} \newacronym{pstn}{PSTN}{Public Standard Telephone Network} \newacronym{scp}{SCP}{Service Control Point} \newacronym{vas}{VAS}{value-added service} \newacronym{plmn}{PLMS}{Public Land Mobile Network} \newacronym{sim}{SIM}{Subscriber Identity Module} \newacronym{imei}{IMEI}{International Mobile Equipment Identifier} \newacronym{dtmf}{DTMF}{Dual Tone Multi Frequency} \newacronym{me}{ME}{Mobile Equipment} \newacronym{sms}{SMS}{Short Message Service} \newacronym{pda}{PDA}{Personal Digital Assistant} \newacronym{ki}{Ki}{Secret Key} \newacronym{imsi}{IMSI}{International Mobile Subscriber Identification} \newacronym{kc}{Kc}{Cyphering Key} \newacronym{pin}{PIN}{Personal Identification Number} \newacronym{eeprom}{EEPROM}{Electrically Erasable Programmable Read-Only Memory} \newacronym{mcc}{MCC}{Mobile Country Code} \newacronym{mnc}{MNC}{Mobile Network Code} \newacronym{msin}{MSIN}{Mobile Subscriber Identification Number} \newacronym{hni}{HNI}{Home Network Identifier} \newacronym{lbs}{LBS}{Location Based Services} \newacronym{ss7}{SS-7}{Signaling System 7} \newacronym{camel}{CAMEL}{Customized Applications for Mobile network Enhanced Logic} \newacronym{http}{HTTP}{Hyper Text Transfer Protocol} \newacronym{nmsi}{NMSI}{National Mobile Subscriber Identity} \newacronym{msc}{MSC}{Mobile Switching Center} \newacronym{hlr}{HLR}{Home Location Register} \newacronym{vlr}{VLR}{Visitor Location Register} \newacronym{eir}{EIR}{Equipment Identity Register} \newacronym{ac}{AC}{Authentication Center} \newacronym{smsc}{SMSC}{Short Message Service Center} \newacronym{msisdn}{MSISDN}{Mobile Subscriber Integrated Services Digital Network Number} \newacronym{msrn}{MSRN}{Mobile Station Roaming Number} \newacronym{la}{LA}{Location Area} \newacronym{tmsi}{TMSI}{Temporary IMSI} \newacronym{ceir}{CEIR}{Central Equipment Identity Register} \newacronym{cc}{CC}{Call Control} \newacronym{isdn}{ISDN}{Integrated Services Digital Network} \newacronym{bsc}{BSC}{Base Station Controller} \newacronym{bts}{BTS}{Base Station Transceiver} \newacronym{trau}{TRAU}{Transcoding Rate and Adaption Unit} \newacronym{arfcn}{ARFCN}{Absolute Radio Frequency Number} \newacronym{ci}{CI}{Cell Identity} \newacronym{sdcch}{SDCCH}{Standalone Digital Control Channel} \newacronym{agch}{AGCH}{Access Grand Channel} \newacronym{pch}{PCH}{Paging Channel} \newacronym{tch}{TCH}{Traffic Channel} \newacronym{sacch}{SACCH}{Slow Access Control Channel} \newacronym{facch}{FACCH}{Fast Access Control Channel} \newacronym{tdma}{TDMA}{Time Division Multiple Access} \newacronym{fdma}{FDMA}{Frequency Division Multiple Access} \newacronym{sch}{SCH}{Signalling Channel} \newacronym{rach}{RACH}{Random Access Channel} \newacronym{sf}{SF}{Stealing Flag} \newacronym{fcch}{FCCH}{Frequency Correction Channel} \newacronym{bcch}{BCCH}{Broadcast Channel} \newacronym{gmsk}{GMSK}{Gaussian Minimum Shift Keying} \newacronym{hdlc}{HDLC}{High Level Data Link Control} \newacronym{lapd}{LAPD}{Link Access Procedure, D Channel} \newacronym{lapdm}{LAPD$_m$}{LAPD Mobile} \newacronym{mtp2}{MTP 2/SS7}{Message Transfer Part 2/SS7} \newacronym{rr}{RR}{Radio Resource} \newacronym{mm}{MM}{Mobility Management} \newacronym{lai}{LAI}{Location Area Identifier} \newacronym{bka}{BKA}{Bundeskriminalamt} \newacronym{bgs}{BGS}{Bundesgrenzschutz} \newacronym{bmi}{BMI}{Bundesminiterium des Inneren} \newacronym{osmo}{Osmocom}{Open source mobile communications} \newacronym{icds}{ICDS}{IMSI Catcher Detection System} \newacronym{diy}{DIY}{do-it-yourself} \newacronym{tc}{TC}{Type Code} \newacronym{fn}{FN}{Frame Number} \newacronym{lac}{LAC}{Location Area Code} \newacronym{ncc}{NCC}{Network Color Code} \newacronym{bcc}{BCC}{Base Station Color Code} \newacronym{bsic}{BSIC}{Base Station Identification Code}