CLEVELAND, April 24 /PRNewswire-FirstCall/ -- Lamson & Sessions (NYSE: LMS) will broadcast over the Internet a conference call discussing their first-quarter 2007 results at 2:00 p.m. Eastern Time on Monday, April 30, 2007.

The audio can be accessed by going to the Company's Web site at http://www.lamson-sessions.com, via the Investor Relations Home Page. Listeners should go to the Web site at least fifteen minutes before this event to register, download, and install any necessary audio software. There is no charge to access this event. For those unable to attend the live broadcast, the call will be archived on the Company's Web site.

Lamson & Sessions is a leading producer of thermoplastic enclosures, fittings, conduit and pipe, and wiring devices for the electrical, construction, consumer, power, communications and wastewater markets.

For additional information, please visit our Web site at http://www.lamson-sessions.com.

For more information contact:

Aileen Liebertz
Manager - Investor Relations
216-766-6560

James J. Abel
Executive Vice President and Chief Financial Officer
216-766-6557