User's Manual 92 Document #: LTRT-23510
MP-26x/MP-27x Multimedia Home Gateway
Parameter Description
Keep-Alive Type
The type of keep-alive mechanism sent to the SIP registrar:
• Using SIP OPTIONS: sends SIP OPTIONS messages
• Using an Empty UDP packet: sends empty UDP packets
Note: This parameter is available only if the ‘Enable Keep Alive’
check box is selected.
Keep-Alive Period
Defines the periodic interval for keep-alive messages.
Note: This parameter is available only if the ‘Enable Keep Alive’
check box is selected.
SIP Proxy and Registrar
Use SIP Proxy
When checked, outgoing calls are routed to the configured SIP proxy.
If the 'Use SIP Proxy IP and Port for Registration' check box is also
selected, the configured SIP proxy is also used as the registrar,
allowing incoming calls.
Host Name or Address
Defines the IP address or host name of the SIP proxy.
Note: This parameter is available only if the ‘Use SIP Proxy’ check
box is selected.
Proxy Port
Defines the port (UDP, TCP, or TLS) of the SIP proxy.
Note: This parameter is available only if the ‘Use SIP Proxy’ check
box is selected.
Maximum Number of
Authentication Retries
Defines how many times authenticated register messages are re-sent
if SIP 401 or 407 responses with a different “nonce” are received.
Note: This parameter is available only if the ‘Use SIP Proxy’ check
box is selected.
Use SIP Proxy IP and Port
for Registration
When selected (default), the SIP proxy’s IP address and port is also
used for registration. When selected, there is no need to config
address / port of the registrar (only the ‘Register Expires’ and
‘Register Expires Failed’ parameters – described later).
Note: This parameter is available only if the ‘Use SIP Proxy’ check
box is selected.
Sip Security
The device's firewall can be configured to block incoming packets that
have the SIP signaling port as their destination. You can configure up
to two SIP entities (for example, the SIP Proxy or an SBC), which are
not blocked by the firewall.
The default value is ‘Allow all SIP traffic’.
Note: This parameter is available only if the ‘Use SIP Proxy’ check
box is selected.
Address Type
Selects the address type of the additional SIP entity - IP address or
host name.
Note: This parameter is available only if the 'Sip Security' field is set
to ‘Allow SIP traffic from Proxy and Additional SIP Entity’.
SIP Entity Address
Defines the address or host name (depending on the settings of the
‘Address Type’ field) of the additional SIP entity.
Note: This parameter is available only if the 'Sip Security' field is set
to ‘Allow SIP traffic from Proxy and Additional SIP Entity’.
Use Redundant Proxy
Enables the use of a redundant proxy.
Note: This parameter is available only if the 'Use SIP Proxy IP and
Port for Registration' check box is selected.
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