Cisco ATA 192 Administration Guide

SIP Timer Values
Table 28: SIP Timer Values Settings
DescriptionField
RFC 3261 T1 value (round-trip time estimate), which
can range from 0 to 64 seconds.
Default setting: 0.5
SIP T1
RFC 3261 T2 value (maximum retransmit interval
for non-INVITE requests and INVITE responses),
which can range from 0 to 64 seconds.
Default setting: 4
SIP T2
RFC 3261 T4 value (maximum duration a message
remains in the network), which can range from 0 to
64 seconds.
Default setting: 5
SIP T4
INVITE time-out value, which can range from 0 to
64 seconds.
Default setting: 32
SIP Timer B
Non-INVITE time-out value, which can range from
0 to 64 seconds.
Default setting: 16
SIP Timer F
H INVITE final response, time-out value, which can
range from 0 to 64 seconds.
Default setting: 32
SIP Timer H
ACK hang-around time, which can range from 0 to
64 seconds.
Default setting: 32
SIP Timer D
Non-INVITE response hang-around time, which can
range from 0 to 64 seconds.
Default setting: 32
SIP Timer J
INVITE request Expires header value. If you enter
0, the Expires header is not included in the request.
Range: 0–(2
31
–1)
Default setting: 240
INVITE Expires
Cisco ATA 191 and ATA 192 Analog Telephone Adapter Administration Guide for Multiplatform Firmware
40
Voice Settings Configuration
SIP Timer Values

Cisco ATA 192 Specifications

General

Ports	2 FXS ports
Network Interface	10/100 Ethernet
Voice Protocol	SIP
Audio Codecs	G.711, G.726, G.729
Operating Temperature	0 to 40°C (32 to 104°F)
Storage Temperature	-20 to 60°C (-4 to 140°F)
Humidity	10 to 90% non-condensing
Compliance	FCC, CE, UL
Fax Support	T.38, G.711 pass-through