Software Specifications - Cisco ATA 191 Administration Manual

Software Specifications

Software Specifications

Table 16: Software Specifications (All Protocols)
Description
Call progress tones
Dual-tone multifrequency (DTMF)
Fax
Line-echo cancellation
Out-of-band DTMF
Configuration
Quality of Service
Cisco ATA 191 Analog Telephone Adapter Administration Guide for Cisco Unified Communications Manager
58
Specification
Configurable for two sets of frequencies and single set of on/off
cadence
DTMF tone detection and generation
Fax pass-through and T.38 fax relay mode.
V34 fax is supported for pass-through mode. Success of fax
transmissions up to 33.6 kb/s depends on network conditions, and
fax modem/fax machine tolerance to those conditions. The network
must have reasonably low network jitter, network delay, and
packet-loss rate.
The ATA 191 only supports T38 Fax Relay Version 0 (G3).
• Echo canceler for each port
• 8 ms echo length
• Nonlinear echo suppression (ERL > 28 dB for frequency = 300
to 2400 Hz)
• Convergence time = 250 ms
• ERLE = 10 to 20 dB
• Double-talk detection
RFC 2833 AVT tones for SIP
Cannot transmit RFC 2833 and in-band signaling,
Note
simultaneously.
• DHCP (RFC 2131)
• Web configuration via built-in web server
• Basic boot configuration (RFC 1350 TFTP Profiling)
• Dial plan configuration
• Cisco Discovery Protocol
• Class-of-service (CoS) bit-tagging (802.1P)
• Type-of-service (ToS) bit-tagging
ATA 191 Specifications