Draytek Vigor2920n User Manual page 78

2. Even no voice prompt, but the RTP traffic is still secured until the call ends.
Note: If the incoming or outgoing calls do not match any entry on the phonebook, the
router will try to make the call "being protected". But, if the call ends up "unprotected"(e.g.
peer side does not support ZRTP+SRTP), the router will not play out a warning message.
P P h h o o n n e e
In this section, you can set your VoIP contacts in the "phonebook". It can help you to make
calls quickly and easily by using "speed-dial" Phone Number. There are total 60 index entries
in the phonebook for you to store all your friends and family members' SIP addresses. Loop
through and Backup Phone Number will be displayed if you are using Vigor 2820V for
setting the phone book.
Click any index number to display the dial plan setup page.
Enable
Phone Number
Display Name
Vigor2920 Series User's Guide
B B o o o o k k
Click this to enable this entry.
The speed-dial number of this index. This can be any number
you choose, using digits 0-9 and * .
The Caller-ID that you want to be displayed on your friend's
screen. This let your friend can easily know who's calling
without memorizing lots of SIP URL Address.
66