Using Blf To Determine A Line State; Making And Receiving Secure Calls - Cisco 7970 Series Phone Manual

For cisco unified communications manager 6.1 (sccp and sip)

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Table of Contents

Tips

• If the phone that shares your line has Privacy enabled, you can make and receive calls using the

shared line as usual.

• The Privacy feature applies to all shared lines on your phone. Consequently, if you have multiple

shared lines and Privacy is enabled, coworkers cannot view or barge calls on any of your shared

lines.

Using BLF to Determine a Line State

Depending on configuration, you can use the Busy Lamp Field (BLF) feature to determine the state of

a phone line associated with a speed-dial button, call log, or directory listing on your phone. You can

place a call to this line, regardless of the BLF status. This feature does not prevent dialing.

If you want to...

See the state of a

speed-dial line

See the state of a line

listed in a call log or

Depending on how your system administrator has configured your phone system, your phone might

support making and receiving secure calls.

Your phone can support these types of calls:

• Authenticated call—The identities of all phones participating in the call have been verified.

Then...

Look for one of these indicators next to the line number:

Line is in-use.

Line is idle.

BLF indicator unavailable for this line.