within call

[within call] or [within hail] {adv. phr.} 1. Near enough to heareach other's voices.

When the two ships were within hail, theirofficers exchanged messages.

Billy's mother told him to staywithin call because supper was nearly ready.

2. In a place where youcan be reached by phone, radio, or TV and be called.

The sick manwas very low and the doctor stayed within call.

The soldiers wereallowed to leave the base by day, but had to stay within call.