Yeastar Technology TA1600 User Manual page 40

 Advanced
Table 4-4 Description of VoIP Server Advanced Settings
Items
Enable SRTP
Qualify
Caller ID
Maxmum Channels
Realm
Authenticating
Incoming Call
DTMF Mode
Codec
TA1600/2400/3200 FXS Gateway User Manual
Figure 4-10 VoIP Server Advanced Settings
Description
Define if SRTP is enabled for this VoIP server.
Send check alive packets to the SIP provider.
Specify the caller ID to use when making outbound calls over
this VoIP server.
Control the maximum number of simultaneous calls. Set as 0
to specify no maximum.
Realm is a string to be displayed to users so they know which
username and password to use.
When an incoming call reaches TA device and sends INVITE
packet to TA, TA responds 401, but the Realm info in 401
Response does not match the Realm set on TA VoIP Server,
the provider will refuse to authenticate. If you set this option to
No, TA will not reply a 401 Response to the provider to
authenticate the incoming call.
Set default mode for sending DTMF of this trunk. Default
setting: rfc2833
Define the codec for this sip trunk and its priority
40/60