Selective calling is akin to the use of a lock on a door.

In conventional systems, units are separated into groups by selective calling.

Some systems communicate using a two-way radio system's selective calling features.

Selective calling prevents the user from hearing others on a shared channel.

Selective calling can be regarded as a form of in-band signalling.

Tone squelch, or other forms of selective calling, is sometimes used to solve interference problems.

Selective calling locks out all signals except ones with the correct 'key', in this case a specific digital code.

A wide variety of selective calling operations are available to call specified station (s) or control a repeater.

Radios are usually segmented into customers with each customer on a separate selective calling code.

This may not always be satisfactory and a system of selective calling may be required.

Some systems may also offer selective calling, allowing customers to communicate with individual radios or segments of their entire radio fleet.

Trunked radio systems have built-in unit ID and selective calling features.

Selective calling features fit into two major categories: individual calling and group calling.

• selective calling arrangements over connections already established.

Selective calling is used to address a subset of all two-way radios on a single radio frequency channel.

Are we then required to conclude that selective calling by chickens provide an unambiguous example of deception in the cognitive sense?

All channels are scanned for Selcall (selective calling).

Some selective calling systems experience falsing.

Automatic number identification is also used to describe the functions of two-way radio selective calling that identify the transmitting user.

Modat is used for unit ID and emergency buttons, rather than for selective calling.

Demonstrate an understanding of the regulations applicable to ship stations equipped with radiotelephony and digital selective calling facilities.

MDC-systems have an option for selective calling.

After confirming the channel is indeed idle, it then sends a brief selective calling signal identifying the intended recipient.

Where more than one user is on the same channel (co-channel users), selective calling addresses a subset of all receivers.

These systems send tone sequences to identify a unit (unit ID) rather than for selective calling.