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General Request
Timeout Timer (msec)
Cancel Invite No
Response Timer (msec)
Provisional Timer
(msec)
First Response Timer
(msec)
MWI Subscript Expires
(sec)
Line Congestion Code
SIP-Info Flash Mode
Encrypt
for the cancelled transaction(Default Value: 10,000 ms).**
After sending a General request, the User Agent waits for a
final response general Request Timeout Timer milliseconds
before timeout termination (in this time the User Agent
retransmits the request every T1, 2*T1,...T2,...milliseconds)**
When sending a CANCEL request on an Invite request, the
User Agent waits for this timer before timeout termination if
there is no response for the cancelled transaction.
The provisional Timer is set when receiving a provisional
response on an INVITE transaction. The transaction will stop
retransmissions of the INVITE request and will wait for a final
response until the provision Timer was expired. If you set the
provision Timer to 0, no timer is set. The INVITE transaction will
wait indefinitely for the final response.
When sending a request out, the User Agent waits this timer for
any response received from UAS. If timer is expired and no any
SIP message is received, the User Agent will think the request
is failed. The default is 5 seconds.
You can Enable or Disable the MWI subscribe. The default is
600 sec. If a new voice mail is arrived, the stutter tone will be
used instead of regular dial tone. This feature is dedicated to
FXS only.
When receiver's end was contacted successfully from
originated site but the receiver site is busy and does not wish to
answer the call at this time, the system will response the code,
default is 600.
(FXO
only)
When you enable the feature, system will make flash key to
send SIP message by sip-info.
Disable: disable encryption function.
VGCP is a proprietary layer 2 link protocol working at between
IP stack and NIC driver for VoIP anti-blocking. The core
patent-pending VGCP is industry's most state-of-art voice
service provider class security protocol whose scalability and
flexibility results in not to compromise voice quality and
overhead. VGCP controls and monitors full voice signaling and
media flow intelligently; meanwhile disguise sip and RTP
packets into normal allowed data packets such as DNS and
46
Internet Telephony Gateway
VGW-400 Series
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