Telephony
and SIP

// Our Services

Telephony and SIP

The end of ISDN is nigh, we can migrate your phone system to a SIP (Session Initiated Protocol) trunk connection and reduce your call costs. BT is set to shutdown ISDN phone lines in 2025 – while you will still be able to purchase lines till September 2023, there will be forced migration from them between April and December 2025. Intersys IT is experienced in installing, configuring and supporting SIP-based telephony systems and is well placed to analyse your organisation’s telephony requirements and offer a solution best suited to your business needs.
3CX
3CX

Build the product you need on time with an experienced team that uses a clear and effective design process.

MICROSOFT TEAMS
MICROSOFT TEAMS

Build the product you need on time with an experienced team that uses a clear and effective design process.

SKYPE BUSINESS
SKYPE BUSINESS

Build the product you need on time with an experienced team that uses a clear and effective design process.

Our preferred solution is from 3CX – a secure cloud-based phone system that brings flexibility to your workforce and major cost savings to your organisation.

Contact us to find out more.