British Telecom (BT), the biggest telecommunication company of UK has signed a four-year deal with Canadian telco Nortel for its enterprise telephony equipment and services on Monday.

The deal represents an extension of an existing relationship, wherein efforts are pooled in from both parties to provide corporates with technology and services.

The deal will enable both the parties to address customers’ needs whether it is voice, contact centre, routing, LANs or VPNs, said the companies.

Nortel, which is reeling under bankruptcy, filed for bankruptcy protection in January this year and got a second lease of life with a three-month extension period that the company won in April.

For the last quarter, it lost $507 million or $1.02 a share in the first quarter ended March 31, as compared to the loss of $138 million, or 28 cents a share, a year earlier.

Its revenue fell 37 percent to $1.73 billion with declines in all segments and regions, failing to meet the analyst forecast of $2.32 billion.

Financial details remain under the rug.