2N NetStar User Manual - Manual (Page 14)

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Call Transfer to PSTN
The service is similar to the above mentioned two ones. The difference is that it is
necessary to dial the public/private network access code before dialling the subscriber
number. You are recommended to use the call transfer mode without hang-up for this
transfer option so that you can keep control of the call until it is answered by the called
user. Dial:
F x nn
where F is FLASH, x is a public/private network access code and nn is the number of
the subscriber you want to transfer the call to.
Return to Transferred Call
This is an extended service of the Call Transfer without Hang-Up service. You can only
return to the caller if no connection with the dialled subscriber has been set up and you
have not hung up. Push the FLASH button (thus terminating the other subscriber's
alerting) for return. When the transferee has already answered the call, the Call
Swapping service is used.
Call Swapping
To swap multiple calls associated with your phone, use the FLASH button. Inactive
subscribers always hear music.
This function depends on the count of call slots per station. For details
refer to Subs. 2.2 - Multiple Call Hold.