VPIM (Voice Profile for Internet Mail)

A specification from the Internet Engineering Task Force

(IETF) for transporting voice mail over TCP/IP networks, including the public Internet,VPIM superseded the Audio Messaging Interchange Specification (AMIS).VPIM wraps ADPCM-encoded voice messages in Multipurpose Internet Mail Extensions (MIME) message parts and uses Simple Mail Transfer Protocol (SMTP) to send them over TCP/IP networks. The first specification for VPIM was RFC 1911 (1996), which was followed by RFCs 2421 and 2421v2 (1998). See also ADPCM, AMIS, IETF, Internet, IP, MIME, RFC, SMTP, TCP, and voice mail.

• Imperial Standard Wire Gauge
• IMP (Instant Messaging and Presence)
• Implementation Agreement (IA)
• Implicit Congestion Notification
• IMPP (Instant Messaging and Presence Protocol)
• Improved Mobile Telephone Service (IMTS)
• Improved Mobile Telephone Service (IMTS)
• impulse noise
• impulse noise
• IMS (IP Multimedia Subsystem)
• IMT-2000 (International Mobile Telecommunications-2000)
• IMTC
• IMTC (International Multimedia Telecommunications Consortium)
• IMT (InterMachine Trunk)
• IMTS (Improved Mobile Telephone Service)
• in-band signaling and control
• incident angle
• incremental redundancy (IR)
• incumbent local exchange carrier (ILEC)
• Independent Communications Authority of South Africa (ICASA)
• independent telephone company
• index-matching gel
• index of refraction (IOR)
• inductance (L)
• inductive reactance (X )