View source for Blind Transfer During Connection

== Description ==
The original AlphaCom is only capable of doing transfer after an successful inquiry to another station during connection. <br\>
This means if no answer during inquiry it is not possible to transfer the call to a private ringing station or a ringing group. <br\>

Blind transfer is based on the [[Inquiry Call feature]]. <br\>
Configuring Inquiry with parameter 1 = 1 will activate transfer directly to the feature directory number dialed during Inquiry. <br\>
This extends the transfer feature to also give the possibility to do transfer to:
* Stations in private
* Ringing groups
* SIP phones
* Group call
*++


In combination with automatic search a switchboard operation can be made.  <br\>
The search string number counter and station is reset when preforming a blind transfer. <br\>
Example:
*A is a switchboard defined as ringing group 1.
*B and C are users with automatic search on private ringing /busy programmed as ringing group 1.
*D is someone calling to the switchboard, could be SIP or AlphaCom station.

#D calls A
#A does a blind transfer to B, B is private ringing 
#After private ringing timeout D is activating ringing group 1 call back to A, from B's first search string
#A does a blind transfer to C, C is busy
#D is activating ringing group 1 call back to A, from C's first search string
etc. etc.


===Known limitations===

*A (AlphaCom) calls B (SIP) and A try to transfer B to a ringing group. This is currently not supported.  ( A (SIP) calls B (AlphaCom) and B transfer to Ringing group is working)





=== Software Operation ===
When activating blind transfer a legal directory number is collected. <br\>
The directory number collected is sent to the other call participant. <br\>
The station receiving the number is canceling current call and activating the new directory number. <br\>
In AlphaNet call situations the proxy station is activating/collecting the directory number.