C-1
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)
OL-4803-01
APPENDIX
C
MGCP Call Flows
This section shows and describes a call flow for a successful call using the Cisco ATA and MGCP.
Note The term Cisco ATA refers to both the Cisco ATA 186 and the Cisco ATA 188, unless otherwise stated.
Figure C-1 on page C-2 illustrates a basic call flow between two Cisco ATAs through a VocalData Call
Agent.
Table C-1 on page C-3 describes the action the Cisco ATA takes for each step in the call flow illustration
and includes the log created by each step.