Voice FIREWALL

Keep control and protect your telephone system against hackers (Phreaking) and your business against huge illegal phone bills.

Hosted Telephony

Our own Hosted Telephony solutions in a local managed state of the art data centre, innovative single and mutli-site managed solutions

Call Management

How many calls has your business missed today? Do you have their number? Our call management solution works with ANY system

Business Solutions

From a small independent business to a company with multiple offices, at Principal we tailor solutions to the needs of your business

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Latest News

Called to the Isle of Wight

We were asked to attend St Mary’s hospital on the Isle of Wight to investigate a major issue with a large telephone system (High Range PABX) as there were no companies on the island with the experience of this specialist system. After … Continue reading

Taking NEC SIP mobility to the high seas.

In September 2015 our marine engineering team were asked to produce a solution for VoWLAN (Voice over Wireless LAN) to enable Mobility onboard a fleet of 4 cruise ships. This solution involved 4 SIP gateways, 320 Spectralink handsets and integration to 4 existing legacy … Continue reading