Cisco ATA186-I1 Administrator's Manual page 172

Software Specifications
Table C-6
Description
Line-echo cancellation
Out-of-band DTMF
Configuration
Quality of Service
Security
Voice coder-decoders (codecs)
Voice features
Voice-over-IP (VoIP) protocols
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for SCCP (version 3.0)
C-4
Software Specifications (All Protocols) (continued)
Specification
Echo canceller 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
•
H.245 out-of-band DTMF for H.323
•
RFC 2833 AVT tones for SIP, MGCP, SCCP
•
• DHCP (RFC 2131)
Web configuration via built-in Web server
•
Touch-tone telephone keypad configuration with voice
•
prompt
Basic boot configuration (RFC 1350 TFTP Profiling)
•
Dial plan configuration
•
Cisco Discovery Protocol for SCCP
•
Class-of-service (CoS) bit-tagging (802.1P)
•
Type-of-service (ToS) bit-tagging
•
H.235 for H.323
•
• RC4 encryption for TFTP configuration files
In simultaneous dual-port operation, the second port is
Note
limited to G.711 when using G.729.
G.723.1
•
G.729, G.729A, G.729AB
•
G.723.1
•
G.711A-law
•
G.711µ-law
•
• Voice activity detection (VAD)
• Comfort noise generation (CNG)
• Dynamic jitter buffer (adaptive)
H.323 v2
•
SIP (RFC 2543 bis)
•
MGCP 1.0 (RFC 2705)
•
MGCP 1.0/network-based call signalling (NCS) 1.0 profile
•
MGCP 0.1
•
SCCP
•
Appendix C Cisco ATA Specifications
OL-4652-01