add,amend and confirm telephone numbersLeadline

Inbound & outbound call centre services, and IVR

...it's your call

Telephone numbers - add, amend and confirm

The BT OSIS file contains the details of around 27m telephone numbers in the UK.  This file is updated daily and from this file Leadline wil add any numbers that are missing, amend any numbers that are wrong and confirm the numbers that are correct.

  • IVR
  • Inbound Call Centre Services
  • Outbound Call Centre Services
  • Additional Services
  • Clients
  • Newsroom
  • Demos and Downloads
  • Prices
  • Home
  • About Us
  • Print Page
  • 0844 669 600
  • Get Free Updates
  • Email Leadline
  • Privacy Statement
  • Information Sources
  • Peninsula - Employer of Excellence
  • ISO 9001 accredited
  • Investor in People
© Leadline Services Limited 2008. Leadline® is the registered trademark of Leadline Services Limited
Leadline Services Ltd 54 New Street, Worcester WR1 2DL Tel: 0844 669 6000 Fax: 0871 575 0080 info@leadline.co.uk

Company registered in England and Wales number 3260056, VAT registration number 696 1254 11