Parents in a Miami neighborhood are complaining that overlapping signals have turned their walkie-talkie baby monitors into a party line for other parents' crying and gurgling infants.

A half-dozen parents in the California Club subdivision rely on their Fisher-Price monitors to keep track of their babies after the infants' bedtime. A transmitter in the crib enables them to hear the child's cries and gurgles over a walkie-talkie receiver in another room.But often, one family's walkie-talkie picks up a neighbor family's signal.

"We hear a baby crying in the middle of the night all the time, and then we realize it's not ours," said Bonnie Reiter, mother of 4-month-old Ilana. "But you should see how my husband jumps."

Overlapping signals are not uncommon in neighborhoods full of young families, said Fisher Price spokeswoman Ellen Duggan. Other companies such as Sony and Gerry make similar monitors and face similar problems.

"Our best advice is to turn off the monitors when you aren't using them because somebody could be listening," Duggan said.

Ellen Feld's son, David, puts in an occasional appearance on neighbor Sandra Guerra's monitor. Feld's receiver picks up outside signals, too, and not just from babies.

"I've heard conversations," Feld said. "But nothing juicy."

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