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Phone systems and servicesSIP trunkswith Microsoft Skype For BusinessA cost effective alternative to ISDN thatprovides flexibility and continuity for yourbusinessReliable voice services

SIP trunksWhat is SIP?SIP trunking is the fastest growing telephony service. It connects your site directly into ournetwork via an IP connection to carry and terminate your inbound and outbound voice calls acrossthe public telephone network. We provide the UK’s leading SIP trunking solution.Our solution provides a highly flexible alternative toISDN and is designed to work successfully with all theleading IP PBX brands in the UK market, giving youpeace of mind in knowing that your PBX hardwareworks with the network service.Compared to ISDN, our SIP trunks are cheaper on aper channel basis, more flexible in terms of whattelephone numbers you can have and where you canhave them, are quicker to install and offers a veryrobust business continuity service that ensures yourbusiness never loses any calls.Our service can support connections ranging from twochannels for businesses with small PBXs to no limit onthe number of channels that can be supported for largeenterprises and contact centres.The benefits of SIP trunkingFlexibility with your phone numbersAllows you to move office and keep the same geographic number without anyongoing call forwarding costs and costs associated with new company stationery.Microsoft Skype for Business integrationOur SIP trunks can be connected directly to Microsoft Skype for Business, enabling yourbusiness to make external calls from the platform.Save moneyIP connectivity costs less than ISDN with lower call costs, free internal calls betweenextensions and offices (including international calls) and lower line rental costs for multisites. Also, no expensive call-forwarding costs are required should you relocate or needto divert calls in the event of a disaster.Line rationalisationFor businesses with multiple sites, SIP trunking provides line rationalisationand reduces the number of PBXs you need to maintain – all with full control of thenumbers associated with your business.Business continuityIf your office has to be temporarily relocated in an emergency, this can quickly andcost effectively be achieved with SIP trunking to keep your business working.ResilienceSIP trunking provides a phone service that will cope with any situation and give you100% up time on your telephony. Whether you need to keep your business runningwithout expensive call forwarding costs in a disaster or emergency, or you need to loadbalance your calls between sites during peak hours, SIP trunking delivers.

How does it work?SIP trunking connects your PBX to our network, enabling full PSTN breakout on thepublic telephone network. Connection from your site (or sites) to our network is viaan IP connection, for example broadband or Ethernet, and is delivered as an end-toend service with an availability guarantee, voice channel guarantees and voiceQuality Of Service.Public phonenetworkSIP trunksIP Direct ConnectEthernet or FibreConnectionIP PBXYour PremisesYour EquipmentAccessService/NetworkSIP trunks and Microsoft Skype for BusinessWe are the UK’s leading certified SIP trunk provider for Microsoft Skype for Business . Our SIP trunks areintegration tested with Microsoft Skype for Business, allowing you to directly connect SIP trunks and makeexternal calls from the platform.MS SKYPEMEDIATIONSERVERROUTERSKYPE FEDERATEDNETWORKEDGESERVERSIP TRUNKINGACTIVEDIRECTORY

SIP trunksSIP Trunking PBX on your premises or in the cloud?Using SIP trunks, your PBX can be located either atyour company site or housed within a managed colocation centre provided by us where you do notneed to be concerned about space,power or support engineers to look after your PBX.Either scenario is possible, or for added resilienceand flexibility you may wish to use a combination ofboth support models.A typical dedicated hybrid hosted PBX implementationCo-locationSIP trunkingLONDONYour VPNnetworknetworkMANCHESTERSIP trunks and your PBXOur SIP trunks have been conformance tested with all of the UK’s IP PBX manufacturers.Here are just some of the IP PBX vendors and SIP Gateway vendors we work with:Public phonenetwork

Business solutions using SIP TrunkingWith SIP trunks you get a service that is more robust and cost effective than ISDN.Because SIP trunking is an IP-based telephony service, you also get number flexibility which gives youa whole host of other added benefits that can solve real business issues.Here are just some of the other ways that SIP trunking can enhance your business.Business continuityUse SIP trunking to protect your office environment in case of fire, flood or other natural disaster. For example,if your London branch has to close in an emergency, and you need the calls routed to Manchester immediately,SIP trunking can do this and at no extra charge to you. Set up at your new location is quick and easy and thereare no call forwarding costs for each inbound call.PSTNFLOODING INLONDONYOURPREMISES- LONDONDSL, DirectInternet or EthernetConnectionSIP TRUNKINGALTERNATIVEPREMISES- MANCHESTERDisaster recovery and service resilienceBy having two PBXs, each at a separate site and each with its own connection, you will always have serviceavailability. Should one site go down, your inbound and outbound calls can automatically be rerouted to the secondsite in an instant and without any prohibitive call forwarding charges. With this set up, you can also share the load oninbound calls to two or more sites. You may choose to have your second PBX off-site at a co-location centre, therebyavoiding the full cost of a second PBX. Alternatively you may wish to use your existing ISDN line as a backup.For absolute resilience, when combined with our Inbound services, SIP trunking can be used to provide a solutionwith guaranteed 100% up-time. In the unlikely event that all of your SIP trunking services are unavailable, youcan still instantly re-route your inbound calls to any destination by redirecting calls to your number of choice.SIP TrunksSITE ALONDONSITE BMANCHESTERISDN 30

SIP trunksMulti-site rationalisationGlasgow - 30 Channels0141 xxx xxxDoes your business have multiple sites? Do you havean ISDN connection into an individual PBX at each site?Using SIP trunks you can reduce the number of ISDNconnections that your business requires and alsoreduce the maintenance costs on all of your variousPBXs. At the remote sites you are left with just the costof an IP connection and the handsets that you need andyou can then pull all the telephony traffic back into yourcentralised PBX.Manchester - 60 Channels0161 xxx xxxISDNAdded to this you are also increasing your resiliencebecause you can build into your communicationsstrategy for lines and calls an automatic fail over systemshould your main site go down. With SIP trunks you caninstantly centralise and distribute the calls somewhereelse, to another site or to home workers, for example.Birmingham - 30 Channels0121 xxx xxxLondon - 30 Channels0207 xxx xxxBefore100 Channels0141 xxx xxx0161 xxx xxx0121 xxx xxx0207 xxx xxxIP NetworkRationalisationCentralised PBXsAfterBusiness relocation0207Number flexibility with SIP trunking meansthat you can keep your existing number, evenwhen moving out of the area, saving you costson printed company literature and stationerywhilst maintaining the perception that you0161still have a presence in the area you’vemoved from. We can easily transfer your oldor existing numbers to so that you can avoidexpensive Remote Call Forwarding (RCF) orcall diversion charges.IP DIRECT CONNECT

How SIP trunks can benefit your businessSIP trunking is suitable for any size of business from small businesses to largeenterprises and government organisations that currently have a PBX, unifiedcommunications solution, or key system. Our SIP trunks can benefit your business inmany different ways.Thinking of moving your premises out of the local area butyou want to keep your business critical number withoutpaying for expensive call forwarding services?Planning to have disaster recovery measures in place toprovide a resilient phone service to cope with anyemergency?Want to link your international offices and have free internalcalls from one office to another, even where the internal callscross international boundaries?Need to improve your customer service by having a localpresence across the UK and having multiple UK numbersdelivered intoone single service centre?Are you a multi-site organisation looking to aggregate individualsite PBXs and lines into a resilient centralised solution?Does your business need seasonal voice capacity requirements – forexample, where more lines for a sales campaign can be quickly andeasily implemented with no long-term commitments?If the answer is yes, then your business needs SIP trunking!Interested?To find out more information on SIPand other products, please callt: 44 (0)121 451 2255 w: www.adidigital.co.ukBirmingham Office: 66 Melchett Road, Kings Norton Business Centre, Kings Norton, Birmingham, B30 3HX, UK

Business solutions using SIP Trunking With SIP trunks you get a service that is more robust and cost effective than ISDN. Because SIP trunking is an IP-based telephony service, you also get number flexibility which gives you a whole host of