Capital provides business calls over premium voice and assured networks only. Our networks are capable of delivering unrivalled efficiency, quality and reliability. Our calls are never compressed and landline to mobile calls are not terminated over international gateways to sacrifice quality for extra margin. For your business this means exceptional quality when making business calls within the UK or Globally. The deregulated UK market means that you can now utiliseour premium networks to deliver your business telephone calls seamlessly at a reduced cost.

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    Business Phone Line

    A standard business line for making and recieving voice calls, connecting to fax machines and for broadband use.


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    Business ISDN2e Services

    Upgrade to ISDN2e lines if your standard business line is starting to get too busy. ISDN2e provides more line capacity and clear voice channels for making and recieving calls and data. Indivdiual DDIs can be added at anytime. Read More..
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    Business ISDN30e

    If your business is growing rapidly and you need a high performance business line to accomodate 8 users or more, then its time to upgrade to ISDN30e. Indivdual DDIs can be added at anytime.
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  • Freeto transfer of services from your existing supplier
  • Free cost analysis and audit of your existing supplier bills, we will illustrate and present how much you will save
  • Fully itemised invoices, with cost centre reporting and call management summaries
  • Improvement in service levels, lines, calls and equipment with a single supplier
  • Average reduction of 30% over BT call charges and services
  • Competitive rates – available on quotation

Carrier Pre-Selection

Carrier Pre-Selection is a method of routing calls for least-cost routing (LCR) without the need for programming of PBX telephone system. This is the process whereby a telephone subscriber whose telephone line is maintained by one company, usually a former monopoly provider (e.g. BT), can choose to have some of their calls automatically routed across a different telephone company’s network (e.g. Capital) without needing to enter a special code or special equipment. The end result is lower call charging and the flexibility to change providers without any downtime as the process which takes 10 working days to complete is totally seamless. Using Carrier Pre Selection Capital can automatically route your outbound calls over premium voice network.

  • Reliable networks offering the best quality calls
  • Low national and local calling
  • A choice of call routing options.
  • Competitive pricing – Save up to 30% over BT
  • Advice on new and emerging voice technologies

SIP Trunks

SIP trunking is a Voice over Internet Protocol (VoIP) and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based Telephone Systems (IP-PBX) and Unified Communications facilities. Most Unified Communications software applications provide voice, video, and other streaming media applications such as desktop sharing, web conferencing, and shared whiteboard.

Capital’s market leading SIP Trunk solution, connects your office directly to our IP Platform, via an IP network connection to carry and terminate inbound and outbound voice calls across the public telephone network.

SIP Trunk Services provides:

  • A highly flexible alternative to ISDN solutions
  • Is designed to work successfully with all the leading IP PBX brands in the UK market
  • Compared to ISDN, SIP Trunks are cheaper on a per channel basis
  • Requires no minimum channels
  • More flexible in terms of what telephone numbers you can have and where you can have them
  • SIP trunks are quicker to install and offers a very robust continuity service
  • The service can support connections ranging from two channels for end users with small PBX’s to no limit on the number of channels that can be supported for larger Enterprise and Contact Centre end user customers.

Assured Voice

Assured Voice is a dedicated servicewhich delivers guaranteed calls over broadband of the highest quality. It is a specialist voice product with includes everything you need for first class IP telephony: a Cisco router, a business-grade connection and the IP telephony service itself, delivered in conjunction with Cloud Telephony or IP Enabled Telephone Systems Compared to ISDN, Capital Telecom’s Assured Voice Service costs less on a per channel basis, is more flexible in terms of what telephone numbers you can have and where you can have them, is quicker to install and offers a very robust continuity service that ensures a business never loses calls

  • Contention Ratio, e.g no contention
  • Does not use the BT data network
  • Compatible with Cloud Telephony & IP Compatible Telephone System
  • Only Voice on the entire network from source to our switch
  • No public internet, all connections privately addressed
  • Connections to be monitored 24×7 from our Network Operations Centre
  • Offered as a fully managed service which includes a Cisco router

Wholesale Line Rental

Renting telephone lines is a fixed cost which can get quite costly if left unmanaged. If your line rental charges seem to be spiralling out of control let Capitaladvise a cost-effective alternative to help lower your charges. On average, we can reduce the cost of digital lines (ISDN2e or 30e), analogue lines or a combination of both by 15%. Your lines are transferred to us over the WLR3 platform which means we can manage, schedule and track BT Openreach engineers in the event of service calls or new line installations.

Analogue Line

A standard business line for making and receiving voice calls, connecting to fax machines and for broadband use Can be used for a number of business functions such as:

  • Fax
  • Broadband
  • Voice
  • PDQ Machines
  • Alarm
Transfer your existing number to a new business line New lines ordered and installed with 5-8 working days

Digital Lines (ISDN2e)

Enjoy exceptional line quality and the ability to send voice, video and data over ISDN phone lines Business ISDN2e For offices with 2 – 8 users, ISDN2e allows for up to 8 simultaneous calls into your business.

  • Order 2 – 8 channels
  • Individual DDI numbers for your staff
  • Seamless transfer
  • Port your number from cable operators
  • Keep your existing numbers
  • Online billing and account management
  • Full range of service features
  • Compatible with digital telephone phone systems

Digital Lines (ISDN30e)

Enjoy exceptional line quality and the ability to send voice, video and data over ISDN phone lines Business ISDN2e For offices with 8–30+ users, ISDN30e allows for up to 30 simultaneous calls into your business.

  • Order 8 – 30 channels
  • Individual DDI numbers for your staff
  • Seamless transfer
  • Port your number from cable operators
  • Keep your existing numbers
  • Online billing and account management
  • Full range of service features
  • Compatible with digital telephone phone systems

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