AudioCodes 420HD - Table 17-1: SIP General Parameters

400HD Series IP Phones
Administrator's Manual 90 Document #: LTRT-11950
 e General SIP parameters using the Configuration File:
• Use the table below as reference.
Table 17-1: SIP General Parameters
Parameter Description
SIP Transport Protocol
[voip/signalling/sip/transport_protocol]
Determines the transport layer for
outgoing SIP calls initiated by the
phone.
 [UDP] UDP (default)
 [TCP] TCP
 [TLS] TLS
TLS Port
[voip/signalling/sip/tls_port]
Defines the local TLS SIP port for
SIP messages.
The valid range is 1024 to 65535.
The default value is 5061.
[voip/signalling/sip/enable_sips]
Relevant for TLS only, if enabled,
the request URI prefix will be
“sips:” otherwise, the prefix will be
“sip:”
[voip/signalling/sip/subs_no_notify_timer]
Indicates the maximum time (in
milliseconds) that a subscription
waits from receiving 2xx response
for a SUBSCRIBE request, until
receiving the first NOTIFY request.
If the timer expires, the
subscription will be terminated.
SIP Local Port
[voip/signalling/sip/port]
Defines the local SIP port (UDP or
TCP) for SIP messages.
The valid range is 1024 to 65535.
The default value is 5060.
Gateway Name
[voip/signalling/sip/proxy_gateway]
Assigns a name to the phone. The
name is used as the host part of
the SIP URI in the From header.
Note:
 Ensure that the name you
choose is the one with which
the Proxy is configured to
identify the phone.
 If not specified, the phone's IP
address is used (default).
PRACK Mode
[voip/signalling/sip/prack/enabled]
Determines whether the phone
sends PRACK (Provisional
Acknowledgment) messages
upon receipt of 1xx SIP reliable
responses.
 [0] Disable

[1]
Enable (default)