| Short for Session
Initiated Protocol, or Session Initiation
Protocol, an application-layer control protocol; a
signalling protocol for Internet Telephony. SIP can establish
sessions for features such as audio/videoconferencing, interactive
gaming, and call forwarding to be deployed over IP networks, thus
enabling service providers to integrate basic IP telephony services
with Web, e-mail, and chat services. In addition to user
authentication, redirect and registration services, SIP Server
supports traditional telephony features such as personal mobility,
time-of-day routing and call forwarding based on the geographical
location of the person being called. SIP is
the protocol for Voice
over IP
Over the past few years many organisations have
derived enormous benefit from providing IP LAN connectivity between
offices. The SIP Voice Over IP Gateway presents a new opportunity
for these organisations to retain trunks in remote locations and
provide free high quality speech communication over the same link
already being used by the LAN traffic.
Many organisations choose to host trunks in a central location and
then use VoIP technology to distribute the calls to remote sites
however there can be a number of reasons why you would wish to use
trunks in remote locations such as:
Retain that 'golden number' that your company has had for many years
Save on local calls from the remote sites
Reduce traffic over your LAN/WAN local calls do not go via the main
site
No need to have stationery reprinted or to advise customers of new
numbers
Use LCR to route calls via your remote locations to reduce costs
The Telrad Connegy range of SIP VoIP gateways offers a range of
technology allowing you to use Analogue, Basic Rate or Primary Rate
ISDN.
The AdvanceIP allows you to utilise different bandwidths for calls
depending on the destination so speech on your corporate LAN can
utilise G711 Codec (64kbps) while calls that may use a smaller IP
pipe can use G729a (8kbps) so that less bandwidth is utilised.
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