S.No. | Short Form | Full Form | Country | Popularity |
1 |
CDMA |
Code Division Multiple Access |
Worldwide |
|
2 |
EPABX |
Electronic Private Automatic Branch Exchange |
India |
|
3 |
PBX |
Private Branch Exchange |
Worldwide |
|
4 |
EVDO |
EVolution-Data Optimized |
Worldwide |
|
5 |
FAX |
Facsimile |
Worldwide |
|
6 |
FDMA |
Frequency Division Multiple Access |
Worldwide |
|
7 |
FM |
Frequency Modulation |
Worldwide |
|
8 |
HSPA |
High Speed Packet Access |
Worldwide |
|
9 |
ISDN |
Integrated Services Digital Network |
Worldwide |
|
10 |
IVR |
Interactive Voice Response |
Worldwide |
|
11 |
OFC |
Optical Fiber Cable |
Worldwide |
|
12 |
REN |
Ringer Equivalence Number |
Worldwide |
|
13 |
RJ |
Registered Jack |
Worldwide |
|
14 |
RJ-11 |
Registered Jack type 11 |
Worldwide |
|
15 |
RJ-45 |
Registered Jack type 45 |
Worldwide |
|
16 |
SIM |
Subscriber Identity Module |
Worldwide |
|
17 |
SISO |
Single Input, Single Output |
Worldwide |
|
18 |
SMS |
Short Message Service |
Worldwide |
|
19 |
SOS |
Save Our Souls |
Worldwide |
|
20 |
UMS |
Unified Messaging System |
Worldwide |
|
21 |
VSAT |
Very Small Aperture Terminal |
Worldwide |
|
22 |
STD |
Subscriber Trunk Dialling |
United Kingdom |
|
23 |
DTMF |
Dual Tone Multi-Frequency |
Worldwide |
|
24 |
GPRS |
General Packet Radio Service |
Worldwide |
|
25 |
AT |
Attention |
Worldwide |
|
26 |
GSM |
Global System for Mobile Communications |
Worldwide |
|
27 |
MSC |
Mobile Switching Center |
Worldwide |
|
28 |
CUG |
Closed User Groups |
Worldwide |
|
29 |
IMS |
IP Multimedia Subsystem |
Worldwide |
|
30 |
PoP |
Point-of-Presence |
Worldwide |
|
31 |
TDMA |
Time division multiple access |
Worldwide |
|
32 |
UMTS |
Universal Mobile Telecommunications System |
Worldwide |
|
33 |
EDGE |
Enhanced Data rates for GSM Evolution |
Worldwide |
|
34 |
PTT |
Push-to-talk |
Worldwide |
|
35 |
WiMAX |
Worldwide Interoperability for Microwave Access |
Worldwide |
|
36 |
NFC |
Near Field Communication |
Worldwide |
|
37 |
Bluetooth |
from the epithet of the tenth-century king Harald “Bluetooth” |
Worldwide |
|
38 |
ISM |
Industrial, Scientific and Medical |
Worldwide |
|
39 |
IUC |
Interconnection Usage Charges |
India |
|
40 |
COM |
Component Object Model |
Worldwide |
|
41 |
OTA |
Over-the-air |
Worldwide |
|
42 |
MMS |
Multimedia Messaging Service |
Worldwide |
|
43 |
PCO |
Public Call Office |
Worldwide |
|
44 |
MBMS |
Multimedia Broadcast Multicast Services |
Worldwide |
|
45 |
MDG |
Mobile Data Gateway |
Worldwide |
|
46 |
CNG |
Comfort Noise Generator |
Worldwide |
|
47 |
SPP |
Serial Port Profile |
Worldwide |
|
48 |
STP |
Signal Transfer Point |
Worldwide |
|
49 |
NAV |
Network Allocation Vector |
Worldwide |
|
50 |
EDR |
Enhanced Data Rate |
Worldwide |
|
51 |
PCS |
Personal Communication Services |
Worldwide |
|
52 |
DTH |
Direct To Home |
Worldwide |
|
53 |
AMPS |
Advanced Mobile Phone System |
Worldwide |
|
54 |
NMT |
Nordic Mobile Telephony |
Worldwide |
|
55 |
TACS |
Total Access Communication System |
Worldwide |
|
56 |
LTE |
Long Term Evolution |
Worldwide |
|
57 |
NOC |
Network Operations Center |
Worldwide |
|
58 |
CAD |
Cisco Agent Desktop |
Worldwide |
|
59 |
SSB |
Single Side Band |
Worldwide |
|
60 |
SID |
System Identification Number |
Worldwide |
|
61 |
JDC |
Japanese Digital Cellular |
Japan |
|
62 |
SPDIF |
Sony-Philips Digital Interconnect Format |
Worldwide |
|
63 |
TOSLink |
Toshiba-Link |
Worldwide |
|
64 |
GPON |
Gigabit Passive Optical Network |
Worldwide |
|
65 |
A2DP |
Advanced Audio Distribution Profile |
Worldwide |
|
66 |
PSTN |
Public Switched Telephone Network |
Worldwide |
|
67 |
DSL |
Digital Subscriber Line |
Worldwide |
|
68 |
PSK |
Phase Shift Keying |
Worldwide |
|
69 |
SAI |
Serving Area Interface |
Worldwide |
|
70 |
ATA |
Analog Telephone Adapter |
Worldwide |
|
71 |
ICW |
Internet Call Waiting |
Worldwide |
|
72 |
HSDPA |
High Speed Downlink Packet Access |
Worldwide |
|
73 |
TSI |
Time Slot Interchange |
Worldwide |
|
74 |
HSUPA |
High-Speed Uplink Packet Access |
Worldwide |
|
75 |
SIO |
Serial Input/Output |
Worldwide |
|
76 |
WLL |
Wireless Local Loop |
Worldwide |
|
77 |
3G |
Third Generation |
Worldwide |
|
78 |
2G |
Second- Generation |
Worldwide |
|
79 |
UIM |
User Identity Module |
Worldwide |
|
80 |
RUIM |
Removable User Identity Module |
Worldwide |
|
81 |
INTERCOM |
Intercommunication |
Worldwide |
|
82 |
IVRS |
Interactive Voice Response System |
Worldwide |
|
83 |
UPC |
Uplink Power Control |
Worldwide |
|
84 |
WCDMA |
Wideband Code Division Multiple Access |
Worldwide |
|
85 |
P2P |
Point-to-Point |
Worldwide |
|
86 |
DAB |
Digital Audio Broadcasting |
Worldwide |
|
87 |
WATS |
Wide Area Telephone Service |
Worldwide |
|
88 |
KSU |
Key Service Unit |
Worldwide |
|
89 |
IMSI |
International Mobile Subscriber Identity |
Worldwide |
|
90 |
CPM |
Continuous Phase Modulation |
Worldwide |
|
91 |
RABMN |
Remote Area Business Message Network |
India |
|
92 |
VRS |
Video Relay Service |
Worldwide |
|
93 |
VMS |
Voice Mail System |
Worldwide |
|
94 |
CO |
Central Office |
United States |
|
95 |
SMR |
Specialized Mobile Radio |
Worldwide |
|
96 |
EOT |
End Of Transmission |
Worldwide |
|
97 |
ANI |
Automatic Number Identification |
Worldwide |
|
98 |
SIT |
Special Information Tone |
Worldwide |
|
99 |
CAM |
Conditional Access Module |
Worldwide |
|
100 |
UTRAN |
UMTS Terrestrial Radio Access Network |
Worldwide |
|
101 |
SWAN |
State Wide Area Network |
India |
|
102 |
MITs |
Mobile Intelligent Terminals |
Worldwide |
|
103 |
SMSC |
Short Message Service Center |
Worldwide |
|
104 |
ADR |
Astra Digital Radio |
Worldwide |
|
105 |
MTBF |
Mark Time Between Frames |
Worldwide |
|
106 |
PRN |
Packet Radio Network |
Worldwide |
|
107 |
LTC |
Longitudinal Time Code |
Worldwide |
|
108 |
CID |
Caller ID |
Worldwide |
|
109 |
4G |
Fourth Generation |
Worldwide |
|
110 |
IM |
Intensity Modulation |
Worldwide |
|
111 |
NRI |
Network Resource Identifier |
Worldwide |
|
112 |
FCA |
Fixed Channel Allocation |
Worldwide |
|
113 |
LJU |
Line Jack Unit |
Worldwide |
|
114 |
OBD |
Outbound Dialler |
Worldwide |
|
115 |
CLI |
Caller Line Identity |
Worldwide |
|
116 |
ASR |
Answer Seizure Ratio |
Worldwide |
|
117 |
NoTA |
Network on Terminal Architecture |
Worldwide |
|
118 |
RADA |
Random Access Discrete Address |
Worldwide |
|
119 |
PUC |
Personal Unblocking Code |
Worldwide |
|
120 |
PDN |
Public Data Network |
Worldwide |
|
121 |
PDN |
Packet Data Network |
Worldwide |
|
122 |
ESS |
Electronic Switching System |
Worldwide |
|
123 |
POTS |
Plain Old Telephone Service |
Worldwide |
|
124 |
FXO |
Foreign eXchange Office |
Worldwide |
|
125 |
NANP |
North American Numbering Plan |
United States |
|
126 |
PRI |
Primary Rate Interface |
Worldwide |
|
127 |
TRS |
Telecommunications Relay Service |
Worldwide |
|
128 |
RIL |
Radio Interface Layer |
Worldwide |
|
129 |
SAE |
System Architecture Evolution |
Worldwide |
|
130 |
ALS |
Alternate Line Service |
Worldwide |
|
131 |
PCM |
Pulse code Modulation |
Worldwide |
|
132 |
xDSL |
X (any type of) Digital Subscriber Line |
Worldwide |
|
133 |
SS7 |
Signaling System 7 |
Worldwide |
|
134 |
PUK |
Personal Unblocking Key |
Worldwide |
|
135 |
TIMSI |
Temporary International Mobile Subscriber Identity |
Worldwide |
|
136 |
AWS |
Advanced Wireless Service |
Worldwide |
|
137 |
FR |
Full Rate |
Worldwide |
|
138 |
CDM |
Code Division Multiplexing |
Worldwide |
|
139 |
TAM |
Telecom Application Map |
Worldwide |
|
140 |
MVNO |
Mobile Virtual Network Operator |
Worldwide |
|
141 |
MBC |
Meteor Burst Communications |
Worldwide |
|
142 |
FPS |
Fast Packet Switching |
Worldwide |
|
143 |
TTE |
Telecommunications Terminal Equipment |
Worldwide |
|
144 |
TTE |
Through-The-Earth |
Worldwide |
|
145 |
AMTS |
Advanced Mobile Telephone System |
Worldwide |
|
146 |
AMTS |
Automated Maritime Telecommunications System |
United States |
|
147 |
IIN |
Interferometric Intensity Noise |
Worldwide |
|
148 |
SLR |
Sending Loudness Rating |
Worldwide |
|
149 |
BS |
Base Station |
Worldwide |
|
150 |
USIM |
User Services Identity Module |
Worldwide |
|
151 |
ADM |
Add-Drop Multiplexer |
Worldwide |
|
152 |
CN |
Core Network |
Worldwide |
|
153 |
MIMO |
Multiple Input Multiple Output |
Worldwide |
|
154 |
CDR |
Call Detail Record |
Worldwide |
|
155 |
CDR |
Committed Data Rate |
Worldwide |
|
156 |
DBA |
Dynamic Bandwidth Allocation |
Worldwide |
|
157 |
UNII |
Unlicensed National Information Infrastructure |
Worldwide |
|
158 |
PP |
Point-to-Point |
Worldwide |
|
159 |
eSIM |
embedded SIM |
Worldwide |
|
160 |
MCLR |
Maximum Cell Loss Ratio |
Worldwide |
|
161 |
SVD |
Simultaneous Voice and Data |
Worldwide |
|
162 |
MCR |
Master Control Room |
Worldwide |
|
163 |
VoLTE |
Voice over Long Term Evolution |
Worldwide |
|
164 |
Telecom |
Telecommunications |
Worldwide |
|
165 |
SSN |
SIM Serial Number |
Worldwide |
|
166 |
MGC |
Media Gateway Controller |
Worldwide |
|
167 |
AVRCP |
Audio/Video Remote Control Profile |
Worldwide |
|
168 |
ERP |
Effective Radiated Power |
Worldwide |
|
169 |
MPH |
Mobile Pedestrian Handheld |
Worldwide |
|
170 |
PDP |
Packet Data Protocol |
Worldwide |
|
171 |
UARFCN |
UTRA Absolute Radio Frequency Channel Number |
Worldwide |
|
172 |
ARFCN |
Absolute Radio Frequency Channel Number |
Worldwide |
|
173 |
EARFCN |
E-UTRA Absolute Radio Frequency Channel Number |
Worldwide |
|
174 |
PDC |
Personal Digital Cellular |
Japan |
|
175 |
CES |
Circuit Emulation Service |
Worldwide |
|
176 |
VTU |
Video Teleconferencing Unit |
Worldwide |
|
177 |
MDF |
Main Distribution Frame |
Worldwide |
|
178 |
OFC |
Open Fiber Control |
Worldwide |
|
179 |
OFC |
Optical Fiber Conductive |
Worldwide |
|
180 |
DBS |
Direct Broadcast Satellite |
Worldwide |
|
181 |
FOC |
Fiber Optic Cable |
Worldwide |
|
182 |
UI |
Unit Interval |
Worldwide |
|
183 |
GT |
Global Title |
Worldwide |
|