SIP Trunking

SIP Trunking

If the following issues apply to you, then you may wish to consider SIP(Session Initiation Protocol) trunking to make and receive calls over an IP connection.

Typical Telephony Issues

  • I have two networks to look after, my PSTN network and my data network and this is expensive.

  • My call traffic is peaky – I am paying for redundant PSTN capacity to cope with the peaks in my workload. If I need to extend above this, I have to buy additional PRI circuits.

  • My organisation is constrained by the telephony technology it uses.

  • My company operates as a series of islands and my remote sites are not fully integrated as a workgroup.

  • We have plans to move to new premises in the future and I would like to keep my phone numbers and move the telephony traffic seamlessly.

  • My disaster recovery for voice is 'clunky' and slow to activate. I need to rely on my PSTN provider to switch my ISDN numbers over to my standby site and this takes too long.

  • SIP Trunk Advantages

  • No need to rely on bundles of wires as the need to buy ISDN circuits and PSTN Gateways is eliminated.

  • Maximise the use of existing internet connectivity as voice and data are converged onto a single network, removing the need for a separate voice infrastructure.

  • Scalable – No need to buy an additional ISDN30 for a small increase in requirement – capacity on demand means that more bandwidth can be provisioned quickly and easily to meet peaks with linear rather than step changes in costs.

  • Easier failover on a day to day basis as multiple routes can be provisioned.

  • Easier and quicker failover to a disaster recovery facility – no manual switchover of ISDN circuits.

  • Ability to deploy and exploit VoIP technology.

  • Increased productivity as geographic barriers of remote offices are overcome, enabling sharing of ideas, through instant messaging, application sharing, white boarding, file transfer, voicemail to email, and easier conferencing.

  • Low call tariffs as it uses the internet for connectivity, plus easier and lower cost conferencing.

  • Cost effective international calls at local rates.