In the latest push toward wireless-wireline convergence, AT&T and Cingular Wireless are trialing a service which gives customers unlimited wireless minutes when calling between their Cingular Wireless mobile phone number and their primary phone line. The trial of Mobile2Home is being launched in Connecticut and will cost $5.99 a month per wireless phone.

AT&T is a local phone service provider in Connecticut, and only its customers who have its residential service and Cingular Wireless service combined onto one bill are eligible for Mobile2Home.

The trial will run through Feb. 25, the company said.

In announcing the SBC-AT&T merger, company officials said fixed-mobile convergence is a significant part of the plan. Already Cingular and AT&T collaborate on other services, including the FastForward cradle, a phone charger that transfers Cingular Wireless calls to a home phone without changing wireless minutes and Unified Communications, an integrate wireline and wireless messaging service for voice mail and email.