Cisco ATA 191 Quick Start Guide

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

Cisco ATA 191 Specifications

General

Fax Support	T.38 Fax Relay
Relative Humidity	10% to 90% (non-condensing)
Ports	2 FXS ports
Voice Protocol	SIP
Protocols	SIP, RTP, RTCP
Power	5V DC
Network Interfaces	10/100BASE-T Ethernet port
Operating Temperature	32°F to 104°F (0°C to 40°C)
Audio Codecs	G.711 (a-law and μ-law), G.729a, G.722, G.726
Voice Codecs	G.711 (a-law and μ-law), G.729a, G.722, G.726
Storage Temperature	14 to 140°F (-10 to 60°C)