Private call allows units to directly talk to another unit without dispatch, or other users in the talkgroup to hear. However, this comes with the inability for dispatch to contact either unit. Page function alerts another radio that someone else is attempting to contact them. Telephone interconnect enables units to make and answer calls through the system. However, only supervisors have the ability to make and answer to any number, general patrols are restricted to only a list of certified SAPOL numbers. Each LSA has two assigned 'talkgroups'.