User's Manual

TLV Fields
Model Name Contains a string, which specifies the IP Deskphone model, for
example, “IP Deskphone xxx”, where, xxx is one of the following values:
1120E, 1140E, 1165E.
PC Client Softphone interworking
The interworking feature allows the user to access the functionality of the SIP 1100 Series IP
Deskphone using a softphone client on their PC. On an incoming call, both the IP Deskphone
and the PC Client Softphone ring. When the user answers the IP Deskphone, the softphone
remains available for Instant Messages, video and other multimedia features
The IP Deskphone, PC Client softphone, and the Call Server are all necessary to support
interworking and the Click-to-Answer functionality.
The interworking feature enables the IP Deskphone to automatically answer an incoming call
for the purpose of Click-to-Answer. To avoid any security risk, the user must pre-grant
authorization to another user, or user groups, to allow them to make requests for the IP
Deskphone to automatically answer their calls.
By using Click-to-Answer, the user can answer a call on their PC Client Softphone, causing
the server to send an auto-answer request to the IP Deskphone. (When a user logs in, the IP
Deskphone sends a special identifier so that only that specific IP Deskphone receives the
request even though the user is logged in on multiple IP Deskphones.) The call is answered
without user interaction, but the microphone is muted to prevent the device from being used
as a listening device by a malicious user. When a call is answered, the user hears a ring-splash
notification and can un-mute the microphone to allow bidirectional media.
Pre-granting authorization for the Answer-Mode
The user must specify which users or groups of users are authorized to request auto-answer.
The user can grant authorization through the Feature Options menu if the interworking feature
is enabled in the user’s IP Deskphone device configuration.
The user can enable and disable one or more of the following groups:
• Allow Public—Authorizes anyone on the internet.
• Allow Friends List—Authorizes everyone on the user's Friends List.
• Allow Directory—Authorizes everyone in the user's Personal Directory.
• Allow Addresses—Acts as a white-list of domain names and SIP addresses that have
authorized users.
PC Client Softphone interworking
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