Grandstream Networks GXV3275 Administration Manual page 47

Use Privacy Header
Use P-Preferred-Identity
Header
SIP Transport
SIP URI Scheme When
Using TLS
Use Actual Ephemeral Port
in Contact with TCP/TLS
Symmetric RTP
RTP IP Filter
Support SIP Instance ID
Validate Incoming SIP
Messages
Check SIP User ID for
Incoming INVITE
Authenticate Incoming
INVITE
information for the Caller ID. If it is set to "Disabled", all the incoming calls Caller ID
will be displayed with "Unavailable". The default setting is "Auto".
Determines if the Privacy header will be presented in the SIP INVITE message and
if it includes the caller info in this header. If it is set to "Default", the Privacy Header
will be omitted in INVITE when "Huawei IMS" special feature is active. If set to
"Yes", it will always be presented. If set to "No", it will always be omitted.
The default setting is "Default".
Specifies if the P-Preferred-Identity Header will be presented in the SIP INVITE
message. If set to "default", the P-Preferred-Identity Header will be omitted in SIP
INVITE message when "Huawei IMS" special feature is active. If set to "Yes", the
P-Preferred-Identity Header will always be presented. If set to "No", it will be
omitted. The default setting is "Default".
Determines which network protocol will be used to transport the SIP message. It
can be selected from TCP/UDP/TLS. The default setting is "UDP".
Defines which SIP header, "sip" or "sips", will be used if TLS is selected for SIP
Transport. The default setting is "sip".
Determines the port information in the Via header and Contact header of SIP
message when the phone system use TCP or TLS. If set to No, these port numbers
will use the permanent listening port on the phone. Otherwise, they will use the
ephemeral port for the particular connection. The default setting is "No".
Configures if the phone system enables the symmetric RTP mechanism. If it is set
to "Yes", the phone system will use the same socket/port for sending and receiving
the RTP messages. The default setting is "No".
Receives the RTP packets from the specified IP address and Port by
communication protocol. If it is set to "IP Only", the phone only receives the RTP
packets from the specified IP address based on the communication protocol; If it is
set to "IP and Port", the phone will receive the RTP packets from the specified IP
address with the specified port based on the communication protocol. The default
setting is "Disable".
Determines if the phone system will send SIP Instance ID. The SIP instance ID is
used to uniquely identify the device. If set to "Yes", the SIP Register message
Contact header will include +sip.instance tag. The default setting is "Yes".
Specifies if the phone system will check the incoming SIP messages caller ID and
CSeq headers. If the message does not include the headers, it will be rejected. The
default setting is "No".
Configures the phone system to check the SIP User ID in the Request URI of the
SIP INVITE message from the remote party. If it doesn't match the phone's SIP
User ID, the call will be rejected. The default setting is "No".
Configures the phone system to authenticate the SIP INVITE message from the
remote party. If set to "Yes", the phone will challenge the incoming INVITE for
authentication with SIP 401 Unauthorized response. The default setting is "No".
GXV3275 Administration Guide
P a g e | 47