Cisco ATA188-I2-A Administration Guide - Page 171

Analysis, Possible Causes for Failure, Example 7-9, Fax Pass-through Mode Failure

Page 171 highlights

Chapter 7 Configuring and Debugging Fax Services Debugging the Cisco ATA 186/188 Fax Services [ 1436]2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected Analysis • is the originating gateway, and is the terminating Cisco ATA. • The Cisco ATA upspeeds to G.711µ-law and sends G.711 upspeed NSE signaling packets. • The gateway does not respond to the NSE signaling packets. Possible Causes for Failure • Fax/modem pass-through option is not enabled on the gateway. • Fax/modem pass-through NSE payload type are configured differently on the Cisco ATA and the gateway. Example 7-9 Fax Pass-through Mode Failure ---------- FAX Summary 1 ---------[ 37]3.200> Codec G723 [ 39]2.53> Codec G723 [ 143]2.53> Codec G711u/D [ 144]2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected [ 1602]2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected [ 1604]3.200> Codec G711u/D [ 1820]3.200> NSE PT 96, Cisco Fax Relay [ 1966]3.200> NSE PT 96, Cisco Fax Relay Analysis • is the originating gateway, and is the terminating Cisco ATA. • The Cisco ATA upspeeds to G.711µ-law and sends G.711 upspeed NSE signaling packets. • The gateway upspeeds to G.711µ-law and then sends Cisco fax relay event packets. Possible Cause for Failure • Cisco fax relay option is not disabled on the gateway. Example 7-10 Fax Pass-through Mode Failure ---------- FAX Summary 1 ---------[ 33]2.53> Codec G729 [ 39]3.200> Codec G729 [ 562]3.200> NTE PT 101, EVT [ 563]3.200> NTE PT 101, EVT [ 565]3.200> NTE PT 101, EVT [ 566]3.200> Codec G711u/D [ 568]3.200> NTE PT 101, EVT [ 580]2.53> Codec G711u/D 34: Modem Mode, ANSam tone Detected (RFC2833) 34: Modem Mode, ANSam tone Detected (RFC2833) 34: Modem Mode, ANSam tone Detected (RFC2833) 34: Modem Mode, ANSam tone Detected (RFC2833) Analysis • is the originating Cisco ATA, and is the terminating gateway. • Both sides initially use G.729. OL-4804-01 Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0) 7-19

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7-19
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for H.323 (version 3.0)
OL-4804-01
Chapter 7
Configuring and Debugging Fax Services
Debugging the Cisco ATA 186/188 Fax Services
[ 1436]<3.200=>2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected
Analysis
<2.53> is the originating gateway, and <3.200> is the terminating Cisco ATA.
The Cisco ATA upspeeds to G.711μ-law and sends G.711 upspeed NSE signaling packets.
The <2.53> gateway does not respond to the NSE signaling packets.
Possible Causes for Failure
Fax/modem pass-through option is not enabled on the gateway.
Fax/modem pass-through NSE payload type are configured differently on the Cisco ATA and the
gateway.
Example 7-9
Fax Pass-through Mode Failure
---------- FAX Summary 1 ----------
[
37]<2.53=>3.200> Codec G723
[
39]<3.200=>2.53> Codec G723
[
143]<3.200=>2.53> Codec G711u/D
[
144]<3.200=>2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected
[ 1602]<3.200=>2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected
[ 1604]<2.53=>3.200> Codec G711u/D
[ 1820]<2.53=>3.200> NSE PT
96, Cisco Fax Relay
[ 1966]<2.53=>3.200> NSE PT
96, Cisco Fax Relay
Analysis
<2.53> is the originating gateway, and <3.200> is the terminating Cisco ATA.
The Cisco ATA upspeeds to G.711μ-law and sends G.711 upspeed NSE signaling packets.
The <2.53> gateway upspeeds to G.711μ-law and then sends Cisco fax relay event packets.
Possible Cause for Failure
Cisco fax relay option is not disabled on the gateway.
Example 7-10
Fax Pass-through Mode Failure
---------- FAX Summary 1 ----------
[
33]<3.200=>2.53> Codec G729
[
39]<2.53=>3.200> Codec G729
[
562]<2.53=>3.200> NTE PT 101, EVT
34: Modem Mode, ANSam tone Detected (RFC2833)
[
563]<2.53=>3.200> NTE PT 101, EVT
34: Modem Mode, ANSam tone Detected (RFC2833)
[
565]<2.53=>3.200> NTE PT 101, EVT
34: Modem Mode, ANSam tone Detected (RFC2833)
[
566]<2.53=>3.200> Codec G711u/D
[
568]<2.53=>3.200> NTE PT 101, EVT
34: Modem Mode, ANSam tone Detected (RFC2833)
[
580]<3.200=>2.53> Codec G711u/D
Analysis
<3.200> is the originating Cisco ATA, and <2.53> is the terminating gateway.
Both sides initially use G.729.