A Session Initiation Protocol (SIP) connection is a Voice over Internet Protocol (VoIP) service that connects a company’s private branch exchange (PBX) telephone system to the public switched telephone network (PSTN) via the Internet.
Using a SIP connection may simplify administration for the organization as the SIP connection typically uses the same Internet access that is used for data. This often removes the need to install Basic Rate Interface (BRI) or Primary Rate Interface (PRI) telephone circuits.
Read our article on 10 things you should know about SIP Trunks.
TSi offer a service called IP Directconnect

What is IP DirectConnect?
IP DirectConnect is the UK’s market leading SIP Trunking service, connecting businesses directly into Gamma Telecom’s network using an IP backbone enabling full PSTN connectivity. The service is available via DSL or Ethernet connection.
What are the benefits of IPDirectconnect?
- Supports multi sites, allowing ISDN Line rationalisation
- Provides free calls between IP sites and lower cost calls to other destinations
- Full business continuity model for businesses without Remote Call Forwarding charges
- Scalable on a per channel basis
- Can be utilised with existing customer premises equipment
- Offers full emergency services support
- Supports application convergence – business grade voice and internet services can be provided via one managed access connection when delivered over Ethernet
How Does it work?
TSi simply connects a ‘pipe’ between your site and our network, you just tell us what level of bandwidth is needed and when and where we need to connect to.
The service is also available over Ethernet, providing a complete IP access and SIP Trunking solution and is delivered as an end to end service with an availability guarantee, voice channel guarantees, and a guaranteed time to fix.
Ethernet support is initially available in London, Leeds, Manchester, Edinburgh, Glasgow, Bristol, Croydon, Basingstoke, Bracknell, Hemel Hempstead and Milton Keynes. Support in other geographic areas will become available over the coming months.
Call Recording Vs SIP Trunking- Enables an affordable call recording solutions that eliminates the need to purchase expensive on-site recording equipment.
Call recording can be delivered from the cloud (The internet), providing significant savings compared to traditional solutions. Recordings can be stored and recalled for reference at any time.
For further information please e-mail sales@tsigroup.co.uk or freephone 08000 27 44 22.
