Tyne Daly has plenty of verve but not much voice.

It's the one disconcerting note in an otherwise fun-filled revival of Irving Berlin's "Call Me Madam," which inaugurated this season's "Encores, Great American Musicals in Concert" at City Center.The musical, one of Berlin's lesser vehicles, was written as an obvious showcase for Ethel Merman after her triumph in "Annie Get Your Gun."

"Call Me Madam" is specifically rooted in the early 1950s and features references to Truman, Eisenhower and, of course, Perle Mesta, the legendary party-giver whose life inspired the musical.

Daly plays Sally Adams, a Mesta clone, who is named ambassador to tiny Lichtenburg, where the main industries are babies and cheese.

Daly's thin wavery sound doesn't do Berlin's musical numbers justice, particularly the more serious love songs. Yet she is a sassy, ingratiating stage performer.

Daly scored a personal triumph several years ago in a revival of "Gypsy," playing Mama Rose, Merman's greatest role. But in that show, she had an extraordinary character to portray, and her merely acceptable singing voice didn't matter as much.

Here, the plot is only an excuse for the songs, and Daly has nowhere to hide when the orchestra starts.