Cisco Systems 7931G manual Making and Receiving Secure Calls

If you want to...	Then...
See the state of a	Look for BLF indicators next to the line number:
speed-dial line	Line is in-use.
	Line is idle.
	BLF- monitored line is ringing (BLF Pickup)
Use BLF Pickup to	While the line is ringing, press the BLF Pickup button	.
answer a call ringing on	The call is redirected to the next available line on your phone. (If you want
a coworker’s phone	to specify a line, first press a line button and then press the BLF button.)
	If your phone supports auto-pickup, the call connects automatically.
	Otherwise, the call rings on your phone for you to answer.
	If you press the BLF Pickup button when the monitored line is not ringing,
	your phone will speed dial the line number.

Tips

•Your phone may play an audible indicator to alert you when a call is ringing on the monitored line (BLF Pickup only).

•BLF Pickup answers the oldest ringing call first (if the line that you are monitoring has more than one ringing call).

Making and Receiving Secure Calls

Depending on how your system administrator configured your phone system, your phone may support making and receiving secure calls.

Your phone can support these types of calls:

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

•Encrypted call—The phone is receiving and transmitting encrypted audio (your conversation) within the Unified CM network. Encrypted calls are authenticated.

•Protected call—The phone is a secure (encrypted and trusted) device on the Unified CM server and is configured as a “Protected Device” in Unified CM Administration.

If “Play Secure Indication Tone” is enabled (True) in Unified CM Administration, the protected phone plays a secure or nonsecure indication tone at the beginning of the call:

–When end-to-end secure media is established through the Secure Real-Time Transfer Protocol (SRTP) and the call status is secure, the phone plays the secure indication tone (three long beeps with brief pauses).

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