Cisco ATA 186 Fax Issue

[Muhammad Syarif Ziyad]

Hi, everyone.

I have some problem with Cisco ATA Fax. I can't sending and recieve fax.

Toplogy:

FAX (Xerox ApeosPort IV 3070) -------- ATA 186 ----------- CUCM ------------ CUBE ----------- PSTN

Fax : Support G3

Please check my configuration

[Manish Gogna]

Hi Muhammad,

Please verify your config as per the "Configuring and Troubleshooting the Cisco ATA 186 with Fax" guide below

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/ata-180-series-analog-telephone-adaptors/19083-ata-fax.html

If the issue persists after checking the config please let us know.

Manish

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[Muhammad Syarif Ziyad]

Hi, Manish

Thank for your reply, 

I configure ATA but problem still exist. 

I think problem in My CUBE configuration to enable SG (G3) for support my FAX machine.

[Manish Gogna]

CUBE config for fax

http://www.cisco.com/c/en/us/support/docs/voice/t38/116280-configure-cube-00.html#anc11

CUBE T.38 Configuration

Note: T.38 Version 3 (Super G3 fax speeds) is supported in Cisco IOS Versions 15.1(1)T and later.

In order to configure T.38 Version 0 (G3 fax speed) under voice service voip, use this command (in bold):

voice service voip
 no ip address trusted authenticate
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

In order to configure T.38 at the dial-peer, use this command (in bold):

dial-peer voice 1 voip
 description T38 Test
 destination-pattern ^1000$
 session protocol sipv2
 session target ipv4:192.168.0.1
 dtmf-relay rtp-nte
 fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
 no vad

In order to configure T.38 Version 3, either under voice service VoIP or at the dial-peer, use this command:

fax protocol t38 version 3 ls-redundancy 0 hs-redundancy 0 fallback none

If a Media Transfer Protocol (MTP) is used when interworking through a CUBE, it must support codec passthrough. Cisco Unified Communications Manager (CUCM) MTP supports codec passthrough for Version 8.6.1 and later. Cisco IOS MTP must have codec pass-through in the Digital Signal Processor (DSP) Farm configuration:

dspfarm profile 2 mtp  
 codec pass-through
 codec g729r8
 maximum sessions software 50
 associate application SCCP

[Sreekanth Narayanan]

Just a correction. T38 won't work with ATA186 as it does not support it.

Please configure the fax protocol as pass-through or modem passthrough nse.

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/ata-180-series-analog-telephone-adaptors/19302-ata-faq.html

Q. Does the ATA 186 support fax pass-through?

A. The ATA 186 supports fax pass-through. It detects the fax answer tone, disables silence suppression, and then renegotiates the coder/decoder (codec) to G.711 u-law or G.711 A-law. It does not support ITU T.38 standard or Cisco proprietary fax relay.

Refer to Configuring the Cisco ATA for Fax Pass-through mode for more information on how to configure the Cisco ATA for fax pass-through mode.

[Muhammad Syarif Ziyad]

Hi, Sreekanth Narayanan. & everyone

I configure ATA pass-through with codec g711alaw, 

Please check my configuration. Need Advice.

[Muhammad Syarif Ziyad]

Hi, guys

I success upgrade cisco ATA 186 to new firmware.

Problem still exist after upgrade cisco ATA 186 to new firmware.

Please advice

[Jorge Armijo]

Hi,

1-ATA186 is SCCP only

2-ATA186 does not support T38

3-Passthrough with SCCP is NSE only (Cisco Proprietary)

4-I wouldn’t use an ATA186 with a SIP Trunk; the Fax Protocols are not compatible

5-I suggest using a VG20X as small and low cost resource or ATA187/190 instead.

HTH

~jorge

[Gordon Ross]

BTW - That's a screenshot from an ATA running an old(er) version of firmware. The last ATA186 firmware had a different web UI.

GTG

[Muhammad Syarif Ziyad]

Hi, all.

My problem has been solve, after discussions with ISP.

ISP try to change configure and enable feature T38 or fallback g711.

ATA 190 and 186 not issue for my configuration.

Thanks guys.