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Considerations for the Call Vectoring Features
C-6
Issue  4 September 1995 
taken by the adjunct is to drop one party on the call, the switch will drop 
the other party as well and clear the call (it cannot retain a call with only 
one party, if there is no Return Destination for further processing).*
User Scenario — Remote Access with Host
Provided Security
A customer may use the VDN Return Destination feature to provide a more 
flexible remote access feature together with host based call security. The remote 
user/caller does not have to call back into the switch when multiple destinations 
need to be reached nor does the caller have to enter his/her identification every 
time a new destination is desired.  For example, a customer can program the 
following vector that is accessed by dialing a VDN that has a Return Destination 
administered.
Figure C-1.
Sample Return Destination Vector with Remote 
Access
In this scenario, a remote caller will call into the switch by dialing the VDN 
administered with the Return Destination. The vector executed will prompt the 
caller to enter an identification number and a password that will be passed, via 
the adjunct routing vector command, to the host for validation. The host can keep 
track of invalid attempts or decide to de-activate or activate certain identification 
numbers based on customer set criteria.
After the host based security is passed (the host sends an Abort to cancel the 
switch Route request; otherwise, the host routes the call to an exception 
destination/VDN), the switch will collect digits for the destination that the caller 
wants to reach (vector step 4 above). The host receives the number entered by 
the caller (vector step 5 above) and validates the entered number to check if  the 
caller is allowed to reach the specified destination. If so, the host routes the call 
to the desired (dialed) destination.
1. collect 8 digits after announcement 1001 ("Please enter
     your identification number and password followed by # sign")
2. adjunct routing link 1221
3. wait-time 6 seconds hearing silence
4. collect 16 digits after announcement 1002 ("Please enter the 
     telephone number of your destination followed by # sign")
5. adjunct routing link 1222
6. wait-time 6 seconds hearing silence
7. disconnect after announcement 1003 ("We are sorry, but we are 
     experiencing technical difficulties at this time, please try 
     again later")