User Manual
72 CHAPTER 7: GETTING MORE FROM YOUR TELEPHONE SYSTEM
Call Park Use Call Park to place a call in a “holding pattern” and make it available 
for another person to pick up from any telephone on the system. Use the 
internal paging feature, the external paging feature, or both, to 
announce the call. The recipient can retrieve the call from any NBX 
Telephone by dialing the Call Park extension that you give during your 
announcement. 
This feature is useful when:
■ The recipient is elsewhere in the building.
■ You want to continue a call on another telephone (for instance, in a 
conference room for privacy), and transferring the call does not give 
you enough time to retrieve it.
When you park a call, you assign it a Call Park extension, which anyone 
can use to retrieve it. Table 12
 lists the factory default Call Park extension 
numbers. Ask your administrator to verify the Call Park extensions for 
your location.
If the call is not answered within 5 minutes after it is parked, it rings again 
at the original telephone. Your administrator can modify the length of 
this waiting period. 
To park a call:
1 While you are on a call, press the Feature button and 444, or press the 
Access button assigned to Call Park. 
2 Use the telephone key pad to dial a Call Park extension from the list 
shown in Table 12
 or the list of extensions at your location.
If you select a Call Park extension that is already in use, the display panel 
displays Park Cancelled, and the call rings back to your telephone. Try 
another Call Park extension.
Table 12 Factory Default Call Park Extension Numbers
System Default Extension Numbers
SuperStack 3 NBX 6000 – 6099
NBX 100 601 – 609
NBX 25 601 – 609










