approved voip service providers

We pride ourselves on being openly interoperable with a range of products and services from a number of suppliers. However, when it comes to VoIP service providers we've found that resellers would sometimes like a little guidance.

As such we're pleased to present to you the approved VoIP service provider list, charting the providers that we've worked together with to complete in depth interoperability testing, as well as those providers that we know have operated well in at least one implementation.

If you're looking for a VoIP service provider, this is a great place to start. The list is by no means exhaustive - the VoIPCortex IP PBX is designed on open standards, and should be interoperable with the vast majority of providers out of the box.

For technical documentation relating to the providers below, including which version of the VoIPCortex software was used to complete testing, please refer to our VoIP technical FAQ in the Networking/Voip Services section.


approved service providers

Metronet (UK) Ltd

Metronet is one of the leading hybrid ISPs in the UK, specialising in last mile wireless technology. Solutions include straight forward leased lines, Complex MPLS, Voice, Managed hosting, 3G data services for remote workers & CCTV services.

Tel: 0161 822 2580
Url: http://www.metronet-uk.com

Spitfire Network Services Ltd

Spitfire are a leading business ISP and Internet Telephony Service Provider (ITSP), providing the underlying internet connectivity allows them to deliver a complete end to end service. Spitfire have over 150 active IT companies who currently use their Internet and Voice product portfolio, please call Nick Goodenough to discuss their solutions.

Tel: 020 7501 3150
Url: http://www.spitfire.co.uk

Timico Limited

Timico is a leading business ISP, providing unified communications services to the UK business market. Timico delivers an unrivalled high level of customer service and a desire to help its customers to operate more effectively. The company's portfolio of services includes IP services, network solutions, fixed line and mobile services.

Tel: 0844 871 8100
Url: http://www.timico.co.uk

Voiceflex

Voiceflex's 1st commercial SIP trunk was sold in December 2005; they now have a very well established and growing base of customers throughout the UK. They are a fully independent carrier and ISP only selling via the channel, they don't sell direct.

Tel: 0203 301 6000
Url: http://www.voiceflex.com

VoIP Unlimited

VoIP Unlimited is dedicated to working with selected channel partners to offer true VoIP services to SMB end customers. From the initial ordering of services and number porting to providing professional billing, VoIP Unlimited has the focus to implement successful VoIP projects accurately and effectively.
VoIP Unlimited have come up with a comprehensive range of services around the core SIP trunk offering including IP connectivity such as ADSL, SDSL, MPLS and National Ethernet; BT PSTN, ISDN and ISDN30 lines and International numbering services.

Tel: 01202 612000
Url: http://www.voip-unlimited.net


other service providers

All of the providers listed below have been known to operate well within at least one VoIPCortex 3.1 implementation. If you're an existing ipcortex reseller and you would like to notify us of a provider that you've used successfully within a VoIPCortex implementation but hasn't made it on to the list, please let us know. Please note that availability of services may change without notice.

  • Gamma Telecom - SIP
  • Gradwell - SIP and IAX
  • Node4 - SIP
  • O-bit media - SIP
  • Sipgate - SIP
  • Sofcall - SIP
  • VoIPTalk - SIP and IAX