Material - White ABS plastic
No. Of cores to telephone - 2
Recommended cable type - CW1308
AC buzzer call tone - No
Electronic call tone - Yes
Call tone volume setting - Yes
Lock release button - Yes
Dry contact button - Yes
Privacy of speech between handsets - Yes
Push mute switch - No
Push mute switch with on/off LED - No
Timed mute - No
Door open LED - No
System - VX2200
Terminal markings -
L - Bus (7.5Vdc)
- - 0V
SW, SW - Dry contact service button