What does all this VoIP jargon mean

Internet phone calling explained

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What do all those terms and abbreviations mean then

					What do all those terms and abbreviations mean then?
					A

					ADPCM
					ADSL
					B

					BROADBAND
					bps
					C

					CLEC
					CODEC
					D

					DHCP
					DTMF
					E

					ENUM
					ETHERNET
					F



					G

					GPRS
					GSM
					H

					H.323
					HARDPHONE
					HUB
					I

					IETF
					IP ADDRESS
					ISDN
					ISP
					ITSP
					ITU
					L

					LAN
					M

					MAC
					MGCP
					N

					NAT
					P

					PACKET
					PBX
					POTS
					PSTN
					R

					ROUTER
					RTP
					S

					SIP
					SOFTPHONE
					T

					TCP
					U

					UDP
					V

					VOIP
					W

					WAN

What do all those terms and abbreviations mean then?