You use a walkie-talkie instead of a bell to summon your servant.

Should he use it to summon us, the summons shall be answered.

I think he uses it to summon the doll fins.

The wand, one of hundreds if not thousands throughout the Keep, was once used to summon servants.

Some clown over there had found a bugle and was using it to summon another charge.

The most recent one we heard, which Balak used to summon the others.

There were probably radio transmitters in the dome which he could use to summon help.

The whistle he used to summon the children was a convenience.

A king could use them to summon people to court.

Spector walked quickly over to the bed and took away the little box used to summon a nurse.