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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SCCP)
OL-3141-01
Chapter 1 Cisco Analog Telephone Adaptor Overview
Software Features
Note If the function button blinks slowly, the Cisco ATA cannot find the DHCP server. Check your
Ethernet connections and make sure the DHCP server is available.
Pressing the function button allows you to access to the voice configuration menu. For additional
information about the voice configuration menu, see the “Voice Configuration Menu” section on
page 3-18.
Caution Never press the function button during an upgrade process. Doing so may interfere with the process and
may permanently disable the Cisco ATA.
Software Features
This section contains topics that cover the protocols and services that the Cisco ATA supports:
• SCCP Version, page 1-5
• Voice Codecs Supported, page 1-5
• Additional Supported Signaling Protocols, page 1-6
• Other Supported Protocols, page 1-6
• Basic Services, page 1-6
• Fax Services, page 1-7
• Pre-call and Mid-call Services, page 1-7
SCCP Version
The Cisco ATA supports the Skinny Client Control Protocol (SCCP) Rev. 3.0 and 3.1.
Voice Codecs Supported
The Cisco ATA supports the following voice codecs (check your other network devices for the codecs
they support):
• G.711µ-law
• G.711A-law
• G.723.1
• G.729
• G.729A
• G.729B
• G.729AB