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Contact us:
+44 (0) 20 7440 1811
info@voiceflex.com





The Company

Voiceflex is a brand name of Frontier Systems Limited. Frontier was formed in 1998 and has experienced strong but steady growth since. Initially formed to provide IT consultancy and IT services, the company added a development team in 2000, moving in to voice switching in 2003.

The Voiceflex platform has been developed from scratch in-house during 2005, with the commercial launch in December 2005. Since then the growth path has been rapid. Voiceflex is now the principle supplier of SIP trunks to the channel.

We are tested and approved with the following manufacturers for direct connection.

  • Avaya
  • Aastra
  • NEC/Phillips
  • Siemens
  • Shortel
  • Epygi
  • Zultys
  • Access one
  • ATL
  • Alcatel
  • Cisco
  • Samsung
  • Swyx
  • Asterix
  • AYC
  • Xten
  • Vegastream
As manufacturers add SIP trunking to their products we will test and gain approval.