Version 2.1
16 March 2006
Page 5 of 33
Vega Gateway Scenarios.
©2005-2006 VegaStream Ltd.
Examples are given in best faith – ensure that you check the capabilities of systems before
deploying them, especially the functionality of devices not designed and delivered by VegaStream.
2. VoIP between sites and home-worker / remote office
Aim: To reduce inter-site call costs without changing the user experience, and adding in basic
home-worker support
Many multi-site companies find that staff making calls between sites is a significant company
expense. Finding a method of reducing to zero the ongoing costs of these calls would be a real
benefit to the bottom line. Also, with more and more people working from home – either
permanently or just occasionally – it is useful and cost effective to have home-workers able to
make free calls to office based staff and use the company PSTN connection for outbound
company calls (no more telephony expenses forms, and appropriate tariffs for outbound calls
based on those negotiated by the company with their chosen carrier).
By inserting a Vega gateway between the PSTN and the PBX the Vega gateway can groom calls
that are destined for other site(s) onto the IP network. All other calls from the PBX continue to be
routed to the PSTN. All calls from the PSTN are routed to the PBX. The source Vega gateway will
direct the VoIP calls to specific destination gateways, based on the telephone number dialled
(single numbers or number ranges can be groomed off to specific destinations). On receiving a
VoIP call, a destination gateway can use the dialled number to decide whether to route the call to
the PBX of that site, or break out into the PSTN at that site (this is especially useful where
different sites are in different countries – international toll call costs can be reduced to local or
national call rates).
If a significant proportion of the company’s calls are made between sites then it is possible that
further cost savings can be made by reducing the number of channels connected to the PSTN.
VoIPon Solutions www.voipon.co.uk [email protected] Tel: +44 (0) 1245 600560
