Draytek Vigor2830 Series, Руководство пользователя

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Vigor2830 Series User’s Guide 277
Display Name 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.
SIP URL Enter your friend’s SIP Address.
Dial Out Account Choose one of the SIP accounts for this profile to dial out. It
is useful for both sides (caller and callee) that registered to
different SIP Registrar servers. If caller and callee do not
use the same SIP server, sometimes, the VoIP phone call
connection may not succeed. By using the specified dial out
account, the successful connection can be assured.
Loop through Choose PSTN to enable loop through function.
Backup Phone Number When the VoIP phone is obstructs or the Internet breaks
down for some reasons, the backup phone will be dialed out
to replace the VoIP phone number. At this time, the phone
call will be changed from VoIP phone into PSTN call
according to the loop through direction chosen. Note that,
during the phone switch, the blare of phone will appear for
a short time. And when the VoIP phone is switched into the
PSTN phone, the telecom co. might charge you for the
connection fee. Please type in backup phone number for
this VoIP phone setting.
Secure Phone ZRTP+SRTP - It allows users to have encrypted RTP
stream with the peer side using the same protocol
(ZRTP+SRTP). Check this box to have secure call.
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.