Last-call return

Last-call return, automatic recall, or (on PBX and centrex service) camp-on, is a telecommunication feature offered by telephony service providers to subscribers to provide the subscriber with the telephone number, and sometimes the time, of the last caller.

[1] The number for this facility varies with country and provider: In the UK, after dialing 1471, the caller can press "3" to automatically return the call.

Previously free, since August 2004 the return call service incurs a charge.

The service provider may also offer a facility by which the calling party can prevent their number being revealed to the called party, either permanently or on a per-call basis.

In Germany, most contemporary telephones have a specific button functioning as call return, which is an internal function of the telephone itself (the number of the last caller is stored inside the phone at the time of that last call) and thus doesn't have a numeric code.