Grandstream Networks GVC3200 Administration Manual page 42

It is used to set if the device will check the SIP User ID in the Request URI of the SIP
Check SIP User
INVITE message from the remote party. If it doesn't match the SIP User ID configured
ID for Incoming
on the device, the call will be rejected. If set to "Yes", this feature will be active. The
INVITE
default setting is "No".
It is used to set if the device will authenticate the SIP INVITE message from the remote
Authenticate
party. If set to "Yes", the device will challenge the incoming INVITE for authentication
Incoming INVITE
with SIP 401 Unauthorized response. The default setting is "No".
SIP Realm Used
This is used to verify incoming INVITE and NOTIFY (including check-sync, re-sync
for Challenge
and reboot). It's only effective when SIP authentication is enabled.
INVITE & NOTIFY
Only Accept SIP
It is used to set if the device will answer the SIP request from saved servers. If set to
Requests from "Yes", only the SIP requests from saved servers will be accepted and the SIP requests
from the unregistered server will be rejected. The default setting is "No".
Known Servers
It is used to define an estimate of the round trip time of transactions between a client
and server. If no response is received in T1, the figure will increase to 2*T1 and then
SIP T1 Timeout
4*T1. The request re-transmit retries would continue until a maximum amount of time
define by T2. The default setting is 0.5 second.
It is used to define the maximum retransmit time of any SIP request messages
SIP T2 Timeout
(excluding the SIP INVITE message). The re-transmitting and doubling of T1
continues until it reaches the T2 value. The default setting is 4 second.
It is used to set if the device will remove outbound proxy URI from the Route header.
Remove OBP
This is used for the SIP Extension to notify the SIP server that the device is behind a
from Route NAT/Firewall. If it is set to "Yes", it will remove the Route header from SIP requests.
The default setting is "No".
Check Domain
It is used to set if the device will check the domain certificates if TLS/TCP is used for
Certificates SIP Transport. The default setting is "No".
Domain It is used to configure the certificate for Authentication, and the option "Check Domain
Certificate certificates" needs to be set to "Yes".
GVC3200/3202 Administration Guide
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