Cisco ATA 191 - Supported Methods; Supported ATA Call Features

Supported Methods
The ATA 191 supports these methods:
• REGISTER
• REFER
• INVITE
• BYE
• CANCEL
• NOTIFY
• OPTIONS
• ACK
• SUBSCRIBE
For more information, see RFC3261, SIP: Session Initiation Protocol.
Supported ATA Call Features
SIP supplementary services are services that you can use to enhance your phone service.
The ATA supports these SIP supplementary services:
• Caller ID
• Call-waiting caller ID
• Voice mail indication
• Making a conference call
• Call waiting
• Call forwarding
• Calling-line identification
• Unattended transfer
• Attended transfer
• Shared Line
• SpeedDial
• Meet-Me Conference
• Call Pickup/Group Call Pickup
• Redial
• Secure Call
• C-Barge
Cisco ATA 191 Analog Telephone Adapter Overview
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Cisco ATA 191 Analog Telephone Adapter Overview
Supported Methods