Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] Variable Bitrate (VBR) codecs variable manipulation variables AstDB, setting ImportVar( ) application Macro( ) application reading from STDIN with fgets function sent by Asterisk to AGI script at startup 2nd sent by Asterisk to AGI script on startup variables, using in dialplan adding variables to dialplan channel variables environment variables global variables VERBOSE command Verbose( ) application verbosity , setting level for debugging messages VIA-based motherboards, compiling Asterisk on video video camera connected to PC, live chats through video components (built-in) on motherboards video-conferencing IP transport mechanism (H.323) Virtual Private Network (VPN), use with IAX VMAuthenticate( ) application voice menus , creation with Background( ) Voice of Asterisk voice prompts for Asterisk, sounds/ directory voice, high-fidelity voice-compression algorithms voice-messaging, uniting with text messaging voicemail accessing adding to dialplan applications creating mailboxes dial-by- name directory VoiceMail( ) application 2nd voicemail.conf file 2nd voicemail/ directory VoiceMailMain( ) application 2nd Voicetronix, analog cards VoIP (Voice over IP) 2nd access to, for legacy PBX alternative route to an extension number or PSTN telephone number Asterisk and register statements users, peers, and friends bottleneck engineering codecs echo Free World Dialup (FWD) service provider gateways providing access to PSTN circuits mobility with Wi-Fi need for protocols packet-switched networks proprietary protocols protocols H.323 IAX MGCP protocols in use today Quality of Service (QoS) best effort method and DiffServ guaranteed service TCP, UDP, and SCTP Quality of Service, challenges to Session Initiation Protocol (SIP) SIP and IAX protocols spam Zapata Telephony Project voltage AC and DC, in analog phones boosting for telephone during ringing VPN (Virtual Private Network), use with H.323 protocol |