Zultys ZIP2x1, Руководство пользователя

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7. Special Functions
77
7.4.3 Holding, Transferring, and Forwarding Calls
7.4.3.1 Calls on Hold
When you put a call on hold, the other person’s device now communicates with the call manager
system, whereas it previously communicated with your phone. Similarly, when you transfer a call
or forward a call, the other person’s device now communicates with someone else’s phone.
In each of these cases the encryption policies of the devices have to be compatible or the call may
be dropped.
For example, consider the case when you are speaking with a person who puts the call on hold:
•
If your phone is configured for normally on or normally off , it will adapt to the new speech
path coming from the phone system by either engaging or turning off encryption.
•
If your phone is configured for always on or never on , the phone system must support
encryption in the former case or must be able to establish communication without encryption
in the latter case. If the phone system cannot communicate with your phone, your phone
rejects the call and your conversation is not placed on hold. Depending on the phone system,
your call may then be dropped or the phone system may reconnect you to the other person.
If you put a call on hold successfully, the phone turns off the LED on the Encrypt button. If the
phone system rejects the call and does not return the call to your phone, the call will be dropped
and the phone will turn off the LED on the respective call appearance button.
7.4.3.2 Transferring Calls
To transfer a call, you place the active call on hold, then dial the person that will receive the active
call, as described in section 6.5.4 on page 62. If encryption on each phone is set for
normally on or
normally off , the encryption state of the transferred call depends on your call to the person that
will receive the transferred call.
After placing the active call on hold:
•
if you call the person that will receive the active call with encryption on, then the transferred
call will be encrypted
•
if you call the person that will receive the active call with encryption off, then the transferred
call will not be encrypted.
7.4.3.3 Forwarding Calls
Call forwarding routes incoming calls to another destination, as described in section 7.3 on page
72. If encryption on each phone is set for
normally on or normally off , the encryption state of the
forwarded call depends on the encryption setting of the phone initiating the call.