
| Button Labels | Speed Dial Access Codes | 
| 
 | 
 | 
| Table 23 | Feature Button Definitions (continued) | ||
| 
 | 
 | ||
| Definitions | |||
| 
 | Sub | Subaddress Button | |
| 
 | Press to enter a subaddress on an ISDN trunk outgoing call. | ||
| 
 | 
 | ||
| 
 | 
 | 
 | |
| Tel Set Music | Background Music Button | ||
| Press to turn Background Music on or off over your station speaker. | |||
| 
 | 
 | ||
| 
 | 
 | 
 | |
| Tone Dial Select | Tone Button | ||
| Press to change the outgoing dialling of the Exchange line in use from dial pulse to tone | |||
| 
 | 
 | signalling. | |
| 
 | 
 | 
 | |
| Unlock Door | Door Lock Buttons | ||
| Press to unlock a door lock mechanism. | |||
| 
 | 
 | ||
| 
 | 
 | 
 | |
| Strata CT Digital Telephone User Guide November 2001 | 167 | 
