Cisco ATA-186 Administration Guide - Page 180
Description, Specification, RFC 2833 AVT tones for SIP, MGCP, SCCP
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Software Specifications Appendix C Cisco ATA Specifications Table C-6 Software Specifications (All Protocols) (continued) Description Fax Line-echo cancellation Out-of-band DTMF Configuration Quality of Service Security Voice coder-decoders (codecs) Specification G.711 fax pass-through and G.711 fax mode. Enhanced fax pass-through is supported on the Cisco ATA. Success of fax transmissions up to 14.4 kbps 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. • 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 • 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 Note In simultaneous dual-port operation, the second port is 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 Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide (SIP) C-4 OL-3410-01