SIP Trunking
Products
Session Initiation Protocol (SIP) builds on the benefits of IP by adding intelligence to business processes and providing both users and businesses with better control over their communications. SIP can support any form of real-time communication regardless of whether it is voice, video, instant messaging, or a collaboration application.
Furthermore SIP delivers presence and this application lets users inform others of their status, their availability, and how they can be contacted before a communication session even begins.
Session Initiation Protocol(SIP)
SIP is spilt in to three different yet over lapping technologies; Voice, Text and Video. The G3mobile network is built on SIP protocols. You may have heard of presence, as in best method of contacting some one, either by voice, text or e-mail, this is also based on SIP, this is an enterprise application which will rapidly move into the SME market. Companies such as Microsoft have been actively using SIP as a protocol for a range of applications such as unified communications server.
The Voice World
SIP provides a signalling and call setup protocol for IP-based communications that can support a superset of the call processing functions and features present in the public switched telephone network (PSTN). SIP by itself does not define these features; rather, its focus is call-setup and signalling. However, it has been designed to enable the building of such features in network elements known as Proxy Servers and User Agents. These are features that permit familiar telephone-like operations: dialling a number, causing a phone to ring, hearing ring back tones or a busy signal. Implementation and terminology are different in the SIP world but to the end-user, the behaviour is similar.
SIP is the next logical step in the evolution of voice communications; routing voice calls over the internet provides additional features over and above ISDN and analogue lines. They are more cost effective.
A SIP Trunk is the equivalent of an ISDN channel, depending on your telephony equipment you can mix and match the amount of SIP Trunks and telephone numbers/DDI ranges.
Number Porting
Moving from London to Manchester and want to retain your London number/s? No problem. We can port your numbers on to our platform and deliver to any IP address in the world. Number porting involves a paper chain; ports can take up to 30 working days from start to completion.
VxDSL (SIP)
VxDSL is our own xDSL voice-only service which guarantees network quality for SIP trunks. VxDSL utilises BT ATM coupled with Voice Flex's own MPLS network to provide unparalled levels of service and quality. This has been done before but on expensive private MPLS circuits which isn't feasible for mass market penetration. Voice Flex's VxDSL removes the uncertainty that the internet brings to voice; we don't use the internet, just internet technology. No traffic over the internet.
DSL connected directly into the VoiceFelx MPLS back bone
- No NAT issues
- No need for packet shaping or QOS
- Security levels very high
- Low and consistent latency
- VXDSL 5 guarantees 5 simultaneous calls
- VxDSL 10 guarantees 10 simultaneous calls
VxDSL (site to site)
VxDSL can also be used as a partitioned MPLS network for customers wishing to connect offices together for the purpose of carrying voice and data traffic between offices throughout the UK. Details and prices provided on application.
Retail Prices
- SIP trunk £6.00 per month
- VxDSL 5 £35.00 per month plus installation fully managed £245.00
- VxDSL 10 £70.00 per month plus installation fully managed £245.00
Call Rates
- National & local 1p per min per call
- Mobile blended rate 10p per min per call
- Buy rates will differ depending on service selected