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ATA Voice Field Reference
SIP page
ATA Administration Guide 135
B
Voice tab > SIP page >
SIP Timer Values (sec) section
Escape Display
Name
Lets you keep the Display Name private. Select yes if you
want the ATA device to enclose the string (configured in the
Display Name) in a pair of double quotes for outbound SIP
messages. Any occurrences of or \ in the string is escaped
with \ and \\ inside the pair of double quotes. Otherwise,
select no.
The default is no.
RFC 2543 Call Hold Configures the type of call hold: a:sendonly or 0.0.0.0.
The default is no; do not use the 0.0.0.0 syntax in a HOLD
SDP; use the a:sendonly syntax.
Mark All AVT
Packets
If set to yes, all AVT tone packets (encoded for
redundancy) have the marker bit set. If set to no, only the
first packet has the marker bit set for each DTMF event.
The default is yes.
SIP TCP Port Min Specifies the lowest TCP port number that can be used for
SIP sessions. This field is not found in the PAP2T.
SIP TCP Port Max Specifies the highest TCP port number that can be used
for SIP sessions. This field is not found in the PAP2T.
SIP T1 RFC 3261 T1 value (RTT estimate), which can range from 0
to 64 seconds.
The default is.5.
SIP T2 RFC 3261 T2 value (maximum retransmit interval for non-
INVITE requests and INVITE responses), which can range
from 0 to 64 seconds.
The default is 4.
SIP T4 RFC 3261 T4 value (maximum duration a message remains
in the network), which can range from 0 to 64 seconds.
The default is 5.