Cisco ATA188-I2-A Administration Guide - Page 168
Analyzing rtpcatch Output for Fax Sessions
View all Cisco ATA188-I2-A manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 168 highlights
Debugging the Cisco ATA 186/188 Fax Services Chapter 7 Configuring and Debugging Fax Services - beginning of new audio codec - silence packets - lost packets - erased packets (as in G.729) The NSE events reported by rtpcatch include: - event 32, Fax Mode, CED tone Detected (RFC2833) - event 34, Modem Mode, ANSam tone Detected (RFC2833) - event 192, Up-Speed, CED tone Detected - event 193, ECAN OFF, Phase Reversal Detected - event 194, ECAN ON, Silence Detected - event 200, T38 Fax Mode, V.21 Detected - event 201, T38 Fax Mode ACK - event 202, T38 Fax Mode NACK - event 203, Modem Relay Mode, CM Tone Detected - event Cisco Fax Relay (with RTP payload type 96) - event Cisco Fax Relay ACK (with RTP payload type 97) Analyzing rtpcatch Output for Fax Sessions The following examples show the proper fax events when gateways are configured to operate in the following modes: • Cisco ATA fax mode • Cisco ATA fax pass-through mode • T.38 fax relay mode • Cisco fax relay mode Example 7-1 Fax Mode ---------- FAX Summary 1 ---------[ 25]3.200> Codec G711u [ 26]2.131> Codec G711u Analysis Both sides use G.711 for the entire fax session. Example 7-2 Fax Pass-through Mode ---------- FAX Summary 1 ---------[ 25]2.116> Codec G723 [ 26]2.213> Codec G723 [ 101]2.213> Codec G711u/D [ 102]2.213> NSE PT 100, EVT 192: Up-Speed, CED tone Detected [ 103]2.213> NSE PT 100, EVT 193: ECAN OFF, Phase Reversal Detected [ 105]2.116> NSE PT 100, EVT 192: Up-Speed, CED tone Detected [ 107]2.116> Codec G711u/D 7-16 Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0) OL-4804-01