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] D channel D-mark (demarc) DAC (digital-to-analog conversion) data closet data link layer, OSI model DATABASE DEL command, AGI database del command, Asterisk CLI DATABASE DELTREE command, AGI database deltree command, Asterisk CLI DATABASE GET command, AGI database get command, Asterisk CLI DATABASE PUT command, AGI database put command, Asterisk CLI database show command, Asterisk CLI datagram defined in network layer reliability of delivery DataOnCall UniFAX service provider DATETIME variable, Asterisk DBdel command, Asterisk DBdeltree command, Asterisk DBget command, Asterisk DBput command, Asterisk DeadAGI command, Asterisk debug channel command, Asterisk CLI decoding demarc (D-mark) Demarc ( demarcation point) demux denial of service (DoS) attack department, extensions based on DHCP (Dynamic Host Configuration Protocol) DHCP lease, expiration of DHCP server Dial command, Asterisk 2nd 3rd 4th dial-around, for emergency dispatch 2nd dial-peer configuration dial-peers dial-plan 2nd administering Asterisk commands for, list of configuration inspecting securing string processing in dial-tone providers offerring VoIP dial-tone service providers dial-tone trunks 2nd 3rd 4th capacity of connecting to VoIP network or PBX for intraorganization calls how many to use dial-tone, losing periodically dial-up, VoIP over Dialogic products DID (direct inward dial) extensions based on fax routing using DiffServ Code Points (DSCP) classes DiffServ standard 2nd advantages of decision point, creating iptables edge router, configuring for when to use digital endpoints digital signal transmission digital subscriber line (DSL), MDFs facilitating Digital Telephony digital-to-analog conversion (DAC) digitizing DigitTimeout command, Asterisk Digium E100P interface card IAXy i100 ATA, codecs supported S100I interface card sponsor of Asterisk T100P interface card TDM400P interface card TE400 Series interface card X100P interface card 2nd direct inward dial (DID) directories 2nd Directory command, Asterisk directory services DISA command, Asterisk disallow keyword, Asterisk disaster survivability distinctive ring detection distortion of signal distributed model Distributed Universal Number Discovery (DUNDi) distribution frames CP distribution frames main (MDF) PSTN DIVR Systems DMZ (demilitarized zone) 2nd DND (do not disturb) DNS (domain name service) server 2nd DNS resolution 2nd do not disturb (DND) dollar sign ($), preceding variables dont include command, Asterisk CLI DoS (denial of service) attack dry lines dry pairs DS0 channel 2nd 3rd 4th DS1 circuit DS3 circuit DSCP (DiffServ Code Points) classes DSL (digital subscriber line), MDFs facilitating DSU/CSU device 2nd DTMF (dual-tone multifrequency) DTMF digits DTMF tones dumb transport dump agihtml command, Asterisk CLI DUNDi (Distributed Universal Number Discovery) Dynamic Host Configuration Protocol (DHCP) |