CHAPTER
4-1
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
4
Basic and Additional H.323 Services
This section provides information about key basic and additional H.323 services that the CiscoATA
supports:
Important Basic H.323 Services, page 4-1—This section includes a list of parameters that you must
configure in order for the Cisco ATA to function in an H.323 environment.
Additional H.323 Services, page 4-7—This section contains information about addi tional,
commonly used H.323 features, with references to the parameters for configuring these ser vices.
Complete Reference Table of all Cisco ATA H.323 Services, page 4-12—This section contains a
complete listing of Cisco ATA services supported for H.323, and includes cross references to the
parameters for configuring these services.
Note The term Cisco ATA refers to both the CiscoATA 186 and the Cisco ATA188, unless otherwise stated.

Important Basic H.323 Services

This section provides descriptions and cross references for con figuring required H.323 parameters and
also for configuring important H.323 services:
Required Parameters, page 4-1
Setting the Signaling Image to H.323 Mode, page 4-2
Setting Up User IDs for the Cisco ATA, page 4-3
Using the Cisco ATA with an H.323 Gatekeeper, page 4-3
Using the Cisco ATA Without an H.323 Gatekeeper, page 4-6
Setting the Audio Codecs, page 4-7

Required Parameters

If the UseSIP parameter is set to 0 (you are using the H.323 protocol), you need to suppl y values for the
required H.323 parameters shown in Tab le 4-1. The Parameter column provides the name of the
parameter and a cross reference which provides a more-detailed description of the parameter.
Note See Chapter 5, “Parameters and Defaults,” for information about additional Cisco ATA parameters.