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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)
OL-4803-01
Chapter 4 Cisco ATA-Supported MGCP Services
Supported MGCP Connection Modes
Supported MGCP Connection Modes
The Cisco ATA supports the following MGCP connection modes:
• SendOnly
• RecvOnly
• SendRecv
• Inactive
• Confrnce
Supported Local Connection Options
The Cisco ATA supports the following local connection options for the MGCP LocalConnectionOption
parameter:
• Codec type: a
• TOS: t
• Packet size: p
• Echo canceller: e
• Silence suppression: s
The LocalConnectionOption parameter is used as "L:" in an MGCP message. The "L:" parameter
provides information for the connection, such as packetization period, codec to use, turning echo
cancellation on and off, and turning silence suppression on and off.
Related CIsco ATA Parameter
CodecName, page 5-19—Use this parameter to specify the encoders and decoders to use in the
LocalConnectionOption parameter.
Supported Signals and Events
The Cisco ATA supports the following persistent events:
• On-hook transition (hu)
• Off-hook transition (hd)
• Hookflash (hf)
The Call Agent must request all other notified events:
• E: Event
• ES: Event with auditable event state
• BR: Brief signal
• OO: On/off signal
• TO: Timeout signal
• C: Event or signal applicable to a connection