What is SIP?

What is SIP?

SIP is the modern equivalent of an ISDN circuit, it allows ISDN quality calls to be placed over regular broadband services and does not always require a dedicated line.


  • Can be provided with any combination of national or international numbers as required.
  • You could save up to 53% compared to BT retail ISDN pricing.
  • Can be used at any office location with sufficient bandwidth with minimal configuration.
  • Future Proof


  • Reliant on Bandwidth availability – require a minimum amount of available bandwidth to function reliably.

For more information on SIP solutions or to discuss further, please contact the team at info@stratustechnologies.co.uk or call us on 01642 697777

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