13.1.11  
Call Forwarding (CF) 
 

Definition  
Three different types of call forwarding (CF) are available:
 •   Chaining call forwarding unconditional
Users can activate variable call forwarding or call forwarding preset by key programming (unconditional, immediate) for the following call types:
   -   Incoming internal calls only
   -   Incoming external calls only
   -   All calls
    This is possible even if the same station is already set as a forwarding destination or if the forwarding destination has already activated call forwarding.
The message "Chaining invalid" no longer appears when you enter a second call forwarding destination during programming.
When a user forwards a dialed party to a station which already activated unconditional, immediate call forwarding to another station, the system monitors the number of call forwarding operations allowed. A preprogrammed counter limits the number of call forwarding operations to a total of 5.
    The following example clarifies this procedure:
   -   Stn A activated call forwarding to stn B: 1. CFU
   -   Stn B activated call forwarding to stn C: 2. CFU
   -   Stn C activated call forwarding to stn D: 3. CFU
   -   Stn D activated call forwarding to stn E: 4. CFU
   -   Stn E activated call forwarding to stn F: 5. CFU
   -   Stn F activated call forwarding to stn G: 6. CFU (not possible)
    If stn X calls stn A, the call reaches stn F, not stn G.
The system forwards the counters with CFU, but not with CFB or CFNR.
 •   Call forwarding busy (CFB)
Same as CFU but only if the line is busy.
 •   Call forwarding no reply (CFNR)
Same as CFU, but only if the call is not answered within 15 seconds (time is configurable).
Use call management to define the lines for busy and no reply.

Model-Specific Data  

 Subject  
 HiPath 3800  
 HiPath 3550  
 HiPath 3500  
 HiPath 3350  
 HiPath 3300  
Feature available in  
 x  
 x  
 x  
Hardware requirements  
 Digital trunk connection  
Software requirements  
 V5.0 or later  
 V1.0 or later  
 V1.0 or later  
CO feature  
 x  
 x  
 x  
Station feature  
 x  
 x  
 x  

Dependencies/Restrictions  

 Subject  
 Dependency/Restriction  
CF  
In the case of a point-to-point connection, the entire line is forwarded. In the case of a point-to-multipoint connection, only the MSN assigned to the extension with programming authorization is forwarded. If no MSN is assigned to this station. call forwarding cannot be activated.  
Call forwarding is always executed for the first basic access, that is the first S0 port must also be available in the system.  
Internal to S0  
Internal stations support CFU only (to prevent conflicts with call management).  

HiPath 3000/5000 V8, Feature Description, Issue 10   up Top
Disclaimer & Copyright   ID: P31003H3580F100017618   2011-02-07