SIP-session initiation protocol SCCP-Skinny Client Control Protocol PABX-private automatic branch exchange PBX-private branch exchange UMTS-Universal Mobile Telecommunications System PSTN-Public switched telephone network VOIP-voice over Internet Protocol SIM-Subscriber identity module GSM-Global System for Mobile Communications CDMA-Code division multiple access TDMA-Time division multiple access DSL-Digital subscriber line EDGE-Enhanced Data GSM Environment GPRS-General Packet Radio Service WAP-Wireless Application Protocol IP-Internet Protocol VPN-Virtual private network APN-Access Point Name DTMF-Dual tone multi frequency 2G-2nd generation 3G-3rd generation WiFi-popular technology that allows an electronic device to exchange data wirelessly (using radio waves) LAN-Local Area Network WLAN- Wireless Local Area Network JPG/JPEG- Joint Photographic Experts Group GIF-Graphics Interchange Format PNG-Portable Network Graphic MPEG-Moving Picture Experts Group 3GP/3GPP-Third Generation Partnership Project WAV-Waveform Audio File Format AMR-Adaptive Multi-Rate audio codec

WWW-World wide web http: hyper text tranfer protocol

good infos! .

WI-FI= wireless fidelity

thabk you for good ınfo