Cisco ATA 186 Administrator's Guide

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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter 5 Parameters and Defaults
Operating Parameters
Related Parameters
• NTPIP, page 5-30
• AltNTPIP, page 5-30
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
Related Parameters
• AltNTPIP, page 5-30
• TimeZone, page 5-29
AltNTPIP
Description
This parameter is the alternate NTP IP address, if you want redundancy. You can set this parameter to 0
or point to the same NTPIP if only one NTP server exists.
Value Type
IP address
Default
0.0.0.0
Voice Configuration Menu Access Code
142

Cisco ATA 186 Specifications

General

Operating Temperature	32°F to 104°F (0°C to 40°C)
Protocol	SIP, H.323
Network Interface	10/100BASE-T Ethernet
Audio Codec Support	G.729a, G.723.1
Power Supply	5V DC
Weight	0.23 kg (0.5 lb)
Relative Humidity	10 to 90% noncondensing
Ports	2 RJ-11 FXS ports