© 2007 Cisco Systems, Inc. All rights reserved. 1 Fax Passthrough Using SCCP and ATA CME4.x

© 2007 Cisco Systems, Inc. All rights reserved. 2 Topology Scenario 1 Fax - ATA/VG224 - SCCP - CME 1-- VoIP -- CME 2 - SCCP - ATA/VG224 - Fax CCME1 VoIP VG224 ATA FAX VG224 SCCP VG224 ATA FAX VG224 SCCP CCME2

© 2007 Cisco Systems, Inc. All rights reserved. 3 CME Configuration >  voice service voip modem passthrough nse codec g711ulaw  Mandatory > dial-peer voice 1 voip destination-pattern 2... modem passthrough nse codec g711ulaw  Mandatory session target ipv4: codec g711ulaw fax rate disable  Mandatory no vad

© 2007 Cisco Systems, Inc. All rights reserved. 4 VG224 Configs …contd >  voice service voip modem passthrough nse codec g711ulaw  Mandatory  sccp local FastEthernet 0/0  sccp ccm identifier 1  sccp  sccp ccm group 1  associate ccm 1 priority 1  !  stcapp ccm-group 1  >  stcapp  !  dial-peer voice 1000 pots  service stcapp  port 2/0

© 2007 Cisco Systems, Inc. All rights reserved. 5 ATA Configs …contd ConnectMode > 0xXXXX0404 AudioMode > 0xXXX5XXX5

© 2007 Cisco Systems, Inc. All rights reserved. 6 Debugs Example of NSE exchanges for phones attached to ATA  Debug ephone pak mac-address H.H.H  Shows NSE Packet negotiations to & from Ephone (Parse “/Pt”) Pt:100 Evt:192 Pkt: ephone_voicepipeline_toph NSE packet Pt:100 ephone_voicepipeline_fromph NSE packet Pt:100 Pt:100 Evt:192 Pkt: >> ephone_voicepipeline_fromph NSE packet Pt:100 Pt:100 Evt:192 Pkt: >>

© 2007 Cisco Systems, Inc. All rights reserved. 7 Debugs Example of NSE exchanges for phones attached to CME  deb voip rtp session named  Used for the cases the end point is attached to CME (i.e. ephone, fxs, fxo... cases)  *Jul 3 06:29:00.479: //-1/xxxxxxxxxxxx/DSMP:():-1/dsmpUpdateRtpMode:  sId = 2, callID = 22, mode = 3 *Jul 3 06:29:02.607: Pt:100 Evt:192 Pkt: >> *Jul 3 06:29:02.631: Pt:100 Evt:192 Pkt: *Jul 3 06:29:02.631: Pt:100 Evt:192 Pkt:

© 2007 Cisco Systems, Inc. All rights reserved. 8 Topology Scenario 2 Fax -- ATA/VG SCCP -- CME 1-- VoIP -- CME 2 -- Fax CCME1 VoIP VG224 ATA FAX VG224 SCCP CCME2 FAX

© 2007 Cisco Systems, Inc. All rights reserved. 9 CME Configuration >  voice service voip modem passthrough nse codec g711ulaw  Mandatory > dial-peer voice 1 voip destination-pattern 2... modem passthrough nse codec g711ulaw  Mandatory session target ipv4: codec g711ulaw fax rate disable  Mandatory no vad

© 2007 Cisco Systems, Inc. All rights reserved. 10 Topology Scenario 3 VG224 PSTN VG224 ATA FAX SCCP FXO PRI FXS CCME Fax -- ATA / VG SCCP -- CME – PSTN -- Fax FAX

© 2007 Cisco Systems, Inc. All rights reserved. 11 Topology Scenario 4 ATA SCCP VG224 FAX FXS CCME VG224 Fax -- ATA / VG SCCP -- CME – Fax

© 2007 Cisco Systems, Inc. All rights reserved. 12 CME Configuration > voice service pots fax rate disable  Mandatory > dial-peer voice 1 pots destination-pattern 1001 fax rate disable  Mandatory port 1/0/0 forward-digits all

© 2007 Cisco Systems, Inc. All rights reserved. 13 Debugs Example of NSE exchanges for phones attached to ATA  Debug ephone pak mac-address H.H.H  Shows NSE Packet negotiations to & from ATA/CME (Parse “/Pt”) Pt:100 Evt:192 Pkt: ephone_voicepipeline_toph NSE packet Pt:100 ephone_voicepipeline_fromph NSE packet Pt:100 Pt:100 Evt:192 Pkt: >> ephone_voicepipeline_fromph NSE packet Pt:100 Pt:100 Evt:192 Pkt: >>

© 2007 Cisco Systems, Inc. All rights reserved. 14 Debugs Example of NSE exchanges for phones attached to CME  deb voip rtp session named  Used for the cases the end point is attched to CME (i.e. ephone, fxs, fxo... cases)  *Jul 3 06:29:00.479: //-1/xxxxxxxxxxxx/DSMP:():-1/dsmpUpdateRtpMode:  sId = 2, callID = 22, mode = 3 *Jul 3 06:29:02.607: Pt:100 Evt:192 Pkt: >> *Jul 3 06:29:02.631: Pt:100 Evt:192 Pkt: *Jul 3 06:29:02.631: Pt:100 Evt:192 Pkt:

© 2007 Cisco Systems, Inc. All rights reserved. 15 Debugs Example of DSMP for phones attached to CME  Debug voip dsmp all  Used to check NSE Packet negotiation & UPSPEED for ATA-FXS Fax. Parse “/PASSTHRU” and “upspeed” )  //-1/xxxxxxxxxxxx/DSMP:():-1/dsmp_get_stm_service_type:  //-1/xxxxxxxxxxxx/DSMP:():-1/dsmp_decide_pgm_based_stm:  //-1/2A0D5FFE809B/DSMP:():-1/dsmp_vbd_upspeed: VBD protocol: CC_CAP_MODEM_PASSTHRU_NSE, ecan  : 1, switching to codec 0x1, upspeed: 1  //-1/xxxxxxxxxxxx/DSMP:():-1/dsmp_leg_voice_elog_write:  //-1/2A0D5FFE809B/DSMP:():-1/dsmp_vbd_upspeed: mode 2, inital 100, min 40, max 200, fax_nom  100