Cisco ATA188-I2-A Administration Guide - Page 169
Example 7-3, Fax Pass-through Mode, T38 Fax Relay Mode, Cisco Fax Relay
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Chapter 7 Configuring and Debugging Fax Services Debugging the Cisco ATA 186/188 Fax Services Analysis • Both sides initially use G.723. • switches to G.711µ-law using a dynamic payload type. • NSE signaling packets are sent from . • An optional NE signaling packet is sent from . • switches to G.711µ-law using a dynamic payload type. Note EVT 193 may not appear for some fax transmission. Example 7-3 Fax Pass-through Mode ---------- FAX Summary 1 ---------[ 37]2.53> Codec G723 [ 41]3.200> Codec G723 [ 136]2.53> Codec G711u/D [ 137]2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected [ 140]3.200> Codec G711u/D Analysis • Both sides initially use G.723. • switches to G.711µ-law using a dynamic payload type. • NSE signaling packets are sent from . • switches to G.711µ-law using a dynamic payload type. Example 7-4 T38 Fax Relay Mode ---------- FAX Summary 1 ---------[ 15]3.99> Codec G711u [ 486]2.53> Codec G711u [ 1277]2.53> Codec T38 [ 1278]3.99> Codec T38 Analysis • Both sides initially use G.711µ-law. • Both sides switch to T.38 Example 7-5 Cisco Fax Relay ---------- FAX Summary 1 ---------[ 8]3.99> Codec G711u [ 248]2.53> Codec G711u [ 798]3.99> NSE PT 96, Cisco Fax Relay [ 799]2.53> NSE PT 97, EVT 192: Up-Speed, CED tone Detected [ 800]3.99> NSE PT 97, Cisco Fax Relay ACK [ 801]3.99> Codec C_FxRly [ 803]2.53> NSE PT 96, EVT 192: Up-Speed, CED tone Detected [ 804]3.99> NSE PT 97, Cisco Fax Relay ACK [ 805]2.53> Codec C_FxRly OL-4804-01 Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0) 7-17