FAQ

The frequency band of hotel intercom is generally: 400 to 470MHz.

Frequency frequency: 350m frequency band.

The channel refers to the frequency value occupied during the transmission receiving. Channel spacing refers to the frequency of two adjacent channels set up by the intercom. The specified channel interval is 25kHz (broadband), 20KHz, 12.5kHz (narrow belt), etc.

Using this function can prevent errors of the key. The intercom's keyboard lock can be locked and unlocked. This function is mainly to prevent errors from touching the keys and disturbing the method of use. The keyboard lock button of the intercom is generally marked with the #s of the#number, and t......

When the patrol staff arrives at the patrol point, the intercom will receive a query signal issued by the patrol registrar, and then automatically starts the registration operation. The information such as the identity code is sent to the patrol registrar, indicating that a patrol person has reached......

Press the alarm -specific key, the intercom makes a alarm sound or a scheduled alarm code to other handheld machines or base desks with the maximum voice.