Specifications

Digium, Inc.
PSTN public switched telephone network
A communications network which uses telephones to esta
connections between two points. Also referred to as the dia
QoS quality of service
A measure of telephone service, as specified by the Public
Commission.
RJ11
A six-pin jack typically used for connecting telephones, m
machines in residential and business settings to PBX or the
telephone CO.
SIP Session Initiation Protocol
An IETF standard for setting up sessions between one or m
is currently the leading signaling protocol for Voice over I
replacing H.323.
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