Yealink SIP-T2 Series, Руководство администратора

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Configuring Advanced Features
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To configure a private hold key via web user interface:
1. Click on DSSKey->Line Key.
2. In the desired DSS key field, select Private Hold from the pull-down list of Type.
3. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
4. Click Confirm to accept the change.
To configure a private hold key via phone user interface:
1. Press Menu->Features->DSS Keys.
2. Press or , or the Switch soft key to select Key Event from the Type field.
3. Press or , or the Switch soft key to select Private Hold from the Key Type
field.
4. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
BLA allows users to share a SIP line on two or more IP phones. Users can monitor the
specific extension (BLA number) for status changes on each IP phone. To use this feature,
a BLA group should be pre-configured on the server and one of them is specified as a
BLA number. BLA depends on support from a SIP server.
Any IP phone can be used to originate or receive calls on the bridge line. An incoming
call to the BLA number can be presented to multiple phones in the group simultaneously.
The incoming call can be answered on any IP phone of the group but not all.
IP phones support BLA using a SUBSCRIBE/NOTIFY mechanism as specified in RFC 3265 .
The event used is:

“dialog” for bridged line appearance subscribe and notify
If the call is placed on public hold, the held call is available for all phones in the group
to retrieve.
Note
BLA is not applicable to SIP VP-T49G IP phones.