PSTN / ISDN Services2018-07-12T15:37:11+00:00

PSTN: (also known as a landline or single analogue line) refers to a dedicated single line used for voice and data transmission. This connection allows a customer to make and receive calls and is used to support an ADSL or FTTC broadband connection for data/internet.

ISDN2: A digital ISDN service designed to support 2-8 concurrent calls and supplied in blocks of 2 with the option of adding DDI numbers. Ideal for smaller businesses. This type of circuit would be connected to a PABX phone system to route calls.

ISDN30: A digital ISDN service for larger businesses, designed for larger businesses needing more than 8 concurrent calls. An ISDN30 circuit supports up to 30 concurrent calls on one bearer but further bearers can be added to provide additional lines on the same number(s). ISDN30 also has the option to add DDI numbers and would be connected to a PABX phone system to route calls.

Transfer To Intouch:
Seamless billing change with no downtime

Dedicated Customer Service:
The Intouch team will test, fault reporting and advice on features

Quality Assurance:
Intouch are a direct BT partner and use the BT network


From 2020, BT will no longer accept any new orders or amendments concerning any ISDN. The final termination date of 2025 is set with the intention of shifting customers to IP telephony services.

Contact Intouch Advance today to discuss the best options for your business.

Intouch Advance uses cookies and third-party services to enhance our services - Read More Accept