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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SIP)
OL-3410-01
Chapter 5 Parameters and Defaults
Operating Parameters
AutMethod
Description
This parameter is not used for SIP.
TimeZone
Description
This parameter is the timezone offset from Greenwich Mean Time (GMT) for time-stamping incoming
calls with local time (to use for Caller ID display, for example).
Local time is generated by the following formula:
• Local Time=GMT + TimeZone, if TimeZone <= 12
• Local Time=GMT + TimeZone - 25, if TimeZone > 12
Value Type
Integer
Range
0-24
Default
17
Voice Configuration Menu Access Code
302
NTPIP
Description
This parameter is the NTP IP address, required if DHCP server does not provide one.
The Cisco ATA requires an NTP Server from which to obtain Coordinated Universal Time (UTC) to
time-stamp incoming calls (H.323 and SIP) to drive an external Caller-ID device.
DHCP may also supply a NTP server. If NTPIP is specified, it overwrites the value supplied by DHCP.
NTPIP is ignored if its value is 0 or 0.0.0.0.
The user must not specify a port parameter. The Cisco ATA uses the default NTP port only.
Value Type
IP address
Default
0.0.0.0
Voice Configuration Menu Access Code
141