Spitfire SIP Trunk Solutions Spitfire SIP Trunk Solutions Spitfire is a leading business-class Internet Telephony Service Provider (ITSP), as well as being a business telecoms operator and Internet Service Provider (ISP). We are one of the UK’s leading business VoIP and SIP specialists, offering a complete end to end service via our own networks. This covers all aspects of VoIP including SIP trunks and hosted telephony, resulting in a service that works - to deliver business-quality voice. Spitfire is also one of only a few The solution therefore is to ensure that the Internet connection which you are using is of the required interconnected telecoms operators and business-quality standard and that you choose an Internet Service Providers with its own SIP operator who can control and deliver all aspects trunk solution. We are able to provide a of the solution end to end. direct connection between a customer’s SIP explained premises and our core network using the SIP (Session Initiation Protocol) is the industry widest range of ADSL, SDSL and standard method of controlling Voice over IP calls Ethernet circuits. and is used by a wide range of operators to provide business VoIP services. SIP is the protocol that controls the call, including set up and close down. This service is a tried and tested alternative to ISDN The actual voice media is sent as normal IP data and we have been using it in our own offices since packets using another protocol known as RTP (Real 2008. We also have many satisfied SIP trunk Time Protocol). customers, and in fact around 25% of our new customers prefer to use Spitfire SIP services rather ITSPs almost all use SIP and this is now seen as a than ISDN digital phone lines. viable alternative to traditional ISDN. The term ‘SIP trunks’ refers to the individual SIP sessions and VoIP explained these are, in effect, sold like ISDN30e lines - so 10 SIP trunks will allow you to have 10 simultaneous Voice over IP (Internet Protocol) is the future of calls via your SIP operator. telephony. In reality, a large proportion of existing telephone calls are now carried across the However, because this IP traffic requires an Internet operator’s networks as IP traffic at some point. connection to travel over, it is of course reliant on the As BT Group rolls out its 21st Century Network, this quality of that connection. In many cases the required will become the case for the majority of calls over Internet circuit and bandwidth is not normally the next few years. provided by the ITSP, so just because you have ordered 10 SIP trunks doesn’t necessarily mean that When implementing a Voice over IP solution within you will have enough capacity to make 10 calls! a business environment, one of the main issues is that you are often relying on a number of different service providers to deliver a call. Much like sending How Spitfire can help an email, the message may travel over many Spitfire is one of the only SIP operators to have its different networks to reach its final destination. own interconnect with BT and to provide its own ADSL and SDSL circuits. What this means in real The problem with putting a telephone call over terms is that, because all elements of the service are these different networks, which may well also provided via our own network, we are able to control be of varying connection types and speeds, is that the call quality and to ensure that our customers you experience what is known as ‘packet loss’. receive a business-class service at all times. This causes delays and jitter, all of which leads to a sub-standard call quality. 020 7501 3333 www.spitfire.co.uk Spitfire SIP trunk solutions Key benefits We are highly experienced in making SIP solutions • We can offer a managed 1:1 Spitfire SDSL circuit work from end to end. Our SIP trunk service offers with Spitfire SIP trunks in one complete package a genuine business-quality alternative to ISDN, with • Our solution is up to 50% cheaper than the outstanding cost savings when compared to this equivalent BT Retail ISDN30e - rental and more traditional approach. In fact typically, our connection customers can save over £1,000 per year when • For office moves, we can port all BT numbers compared with ISDN30e rental. as well as our own UK-wide number ranges Spitfire provides a fully managed service which • Phone calls are significantly cheaper covers the IP data connectivity, SIP trunks and • We can provide telephone numbers from number management - all available via a standard geographic areas all over the UK and route them monthly rental charge, in exactly the same way as to your SIP service, enabling you to have a virtual you would receive an ISDN service. We are also office anywhere one of only a few SIP operators that can genuinely • Our SIP trunk solution offers flexible options for deliver a complete end to end solution, including providing back-up to ISDN lines and vice-versa DSL Internet bearer circuits as a package with our • We can support your disaster recovery strategy, SIP trunks. with automatic call routing to alternative IP circuits, or back-up diverts to any other UK landline or We run our own core network infrastructure, rather mobile number than just reselling someone else’s service, as many operators do. And with our dedicated test facility, • Bonded ADSL option provides increased resilience we have carried out in-depth interoperability testing of our service with a variety of manufacturers’ SIP devices and IP PBX telephone systems. Back-up option to divert incoming calls to any UK landline or mobile in the event of a circuit failure Customer Premises Spitfire Primary IP circuit - e.g. SDSL or Ethernet SIP Trunks Spitfire SIP Gateway and Core Network IP Phone System Complete UK numbering and porting options. Spitfire back-up IP circuit - e.g. ADSL PSTN Direct Interconnect Spitfire ADSL circuit SIP Trunks Home or second office Complete Spitfire end-to-end solution Cost comparison Number provision Spitfire business SIP trunks cost £4.00 per month, One of the great advantages of SIP is the ability whilst for SIP Internet bearer circuits, we to have numbers from any dialling code delivered recommend our Spitfire Business 2Mb 1:1 SDSL to your office, regardless of its location. We have which starts from just £59.00 per month. So for a numbers allocated on all UK dialling codes, company with 10 ISDN30e lines and 100 DDI allowing you to choose the one that you require. numbers, a Spitfire SIP trunk solution would be In addition, any telephone number from BT Retail 43% less expensive, as well as being offered with and selected other carriers can be ported to our a wide range of back-up options: network, allowing you to retain your number when moving premises. • One year BT Retail ISDN30e with 10 channels and 100 DDI quota plus CLIP £190.80 per month Back-up options • Spitfire SIPStream SDSL 2Mb 1:1 with back-up SIP is ideal as a Business Continuity solution. ADSL circuit, 10 SIP trunks and 100 DDIs £109.00 Any number on the Spitfire network can be per month forwarded to any other location, as long as it is connected via a SIP trunk or is a UK landline or That’s a saving of over £80 per month, and mobile number. In the event of a failure at the main with guaranteed ISDN30e equivalent quality. site, calls can be automatically forwarded to home telephone numbers, mobiles or other sites - or to a Proven interoperability combination of locations and numbers. We have completed full interoperability testing with the following systems, which are fully certified for use with Spitfire SIP trunks. They are also tested with each new software release: • 3CX • Panasonic • Asterisk ® • Patton • Avaya • PBXnSIP • Epygi • SARK • ipcortex • Trixbox • Nortel • snom We are able to recommend partners who hold manufacturer’s accreditation and are also authorised Spitfire Partners, to help you with the implementation of these systems. This allows you to benefit from a fully integrated and coordinated service delivery. For more information about Spitfire SIP trunk Solutions, please call 020 7501 3333, email [email protected] or visit www.spitfire.co.uk/siptrunk London Midlands The Printworks 44 The Business Centre 139 Clapham Road Edward Street London Redditch SW9 0HP B97 6HA Tel: 020 7501 3333 Tel: 0121 348 7700 www.spitfire.co.uk Version 2.