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International Direct Dialling

Offer your customers the superior international dialling experience from BT.
With buying power and expertise that leads the world, we make it possible.

Boost your revenue and grow your business

Exceptional value for you

High-quality international calls are integral to your voice offering, whether you sell mobile, fixed line services, or both. With our International Direct Dialling (IDD) service you can offer your customers seamless direct dialling, anywhere in the world. Our unmatched supplier networks and infrastructure mean you can be sure of a reliable service and competitive rates.

Excellence on each call

We've invested significantly so you get huge value. All our global traffic is constantly monitored by our world-class Management Centre, 24 hours a day, 7 days a week. We use a highly resilient, robust network and only the best, most competitive international suppliers who meet our strict criteria.

Benefits for you and your customers

You come first – IDD will always deliver your international voice traffic via the optimum route available.

Superior service quality – we've chosen suppliers who meet your needs and can support C7, SIP and SIP-I signalling and seamless interconnectivity between PTSN and IP voice. We also fully support roaming traffic.

Competitive call rates – our international buying power means we can offer great-value IDD rates.

We cater for all our customers – we only use suppliers who will work with us to support all call requirements. It's part of our extensive buying criteria.

Full support and more – our International Network Management Centre is on hand for you, 24/7 and is supported by proactive monitoring.

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