BSI audio voice solutions


BSI Solutions works with customers on inbound telephony projects in several different areas:

  • Directly connected traditional inbound lines
  • NGN & Inbound DDI numbers range management
  • SIP-based lines and inbound DDI numbers
  • New intelligent network applications


Direct Voice

At BSI Solutions, we operate our own voice switching infrastructure as well as interconnecting with all major tier 1 network operators. Our exchanges are geographically separate and carrier neutral. This delivers both resilience and flexibility as we are always in complete control over how your calls are handled. Direct voice connectivity also allows us to provide differentiated and value-adding services for business continuity such as our unique Livenumber product.


SIP trunk provider – BSI Solutions knows that a full-scale migration to SIP trunking is inevitable. Developments such as BT’s 21CN (21st Century Network) demonstrate that the SIP trunking migration is already underway. This is combined with carrier network upgrades that result in VoIP being used for all backhaul and core network voice transit to mean that numbers of TDM analogue and digital voice trunks are in decline.

BSI Latest News

Aug 06
Institutional Stockbroker & Investment Bank

BSI completed successfully the data cabling & electrical expansion for new personnel required at One New Change, including the relocation of […]

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Jun 11
Financial Services Company

BSI successfully complete the relocation of all staff from offices within the West End to the City, having already provided all […]

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Feb 10
Telecoms Provider

BSI have secured the opportunity to become the preferred telecoms provider for a UK Demolition company

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