[cisco-voip] Fax on FXS problem

Ed Puzziferri epuzziferri at factset.com
Tue Jul 27 17:01:00 EDT 2010 

Ahmed,

There is not a bug, this is how the 2900 operates with the new PVDM3's.  I opened a TAC SR and the engineer confirmed that fax relay was not supported and I should disable it.  I found the configuration info by looking it up myself.   If you search on the Cisco web site for fax/modem relay you should find additional info.

Ed

From: Ahmed Elnagar [mailto:ahmed_elnagar at rayacorp.com]
Sent: Tuesday, July 27, 2010 4:59 PM
To: Ed Puzziferri
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Fax on FXS problem

I will give it a try and give you a feedback...do you have a bug ID or TAC number??

 Best Regards;
  Ahmed Elnagar
  Senior Network PS Engineer
  Mob: +2019-0016211
  CCIE#24697 (Voice)
 [ccie_voice_large.gif]

From: Ed Puzziferri [mailto:epuzziferri at factset.com]
Sent: Tuesday, July 27, 2010 7:38 PM
To: Ahmed Elnagar
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Fax on FXS problem

Are you using a 2900 router?  If so it does not support fax relay you need to set if for modem relay.  I had the exact same error before I changed the configuration.

voice service voip
modem relay nse codec g711u gw-controlled
modem relay nse codec g711a gw-controlled

You also need to disable fax relay on the ccm-manager config

no ccm-manager fax protocol

We are using mgcp gateway and I also added this (not sure if it's needed for H323)

voice service voip
modem relay nse codec g711alaw gw-controlled

Once I set these commands my faxes worked fine.  I had a similar setup fxs port going to telco PRI, all on the same router.

Ed


From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ahmed Elnagar
Sent: Tuesday, July 27, 2010 12:06 PM
To: Scott Voll
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Fax on FXS problem

There are no VOIP legs involved in the call at all.

FAX machine>>>FXS port>>>PRI E1 "same router">>>>PSTN.

 Best Regards;
  Ahmed Elnagar
  Senior Network PS Engineer
  Mob: +2019-0016211
  CCIE#24697 (Voice)
 [ccie_voice_large.gif]

From: Scott Voll [mailto:svoll.voip at gmail.com]
Sent: Tuesday, July 27, 2010 6:34 PM
To: Ahmed Elnagar
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Fax on FXS problem

fax relay setup?

G729?

Scott
On Tue, Jul 27, 2010 at 7:26 AM, Ahmed Elnagar <ahmed_elnagar at rayacorp.com<mailto:ahmed_elnagar at rayacorp.com>> wrote:
Dear all;

I have a strange problem here:

I have a h323 voice gateway with FXS connected to a FAX machine and an E1 PRI port to the Telco; when connecting analog phone to the port calls are working normally "in and out" when connect a fax I can receive faxes but not send...although I am able to send faxes to a remote site over the WAN but cannot use the local E1 on the router to send faxes...below is the error I got from the debug

013747: *Jul 27 11:38:22.813 UTC: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x1, Calling num 0238271333
013748: *Jul 27 11:38:22.813 UTC: ISDN Se0/0/0:15 Q931: Sending SETUP  callref = 0x021E callID = 0x81B0 switch = primary-net5 interface = User
013749: *Jul 27 11:38:22.813 UTC: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x021E
        Bearer Capability i = 0x8090A3
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA98382
                Exclusive, Channel 2
        Progress Ind i = 0x8183 - Origination address is non-ISDN
        Calling Party Number i = 0x0180, '0238271333'
                Plan:ISDN, Type:Unknown
        Called Party Number i = 0x81, '38271499'
                Plan:ISDN, Type:Unknown
013750: *Jul 27 11:38:22.849 UTC: ISDN Se0/0/0:15 Q931: RX <- SETUP_ACK pd = 8  callref = 0x821E
        Channel ID i = 0xA98382
                Exclusive, Channel 2
013751: *Jul 27 11:38:23.005 UTC: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x821E
013752: *Jul 27 11:38:23.013 UTC: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8  callref = 0x821E
        Progress Ind i = 0x8488 - In-band info or appropriate now available
013753: *Jul 27 11:38:25.001 UTC: ISDN Se0/0/0:15 Q931: RX <- CONNECT pd = 8  callref = 0x821E
        Date/Time i = 0x0A071B0E26
                Date (dd-mm-yr)   = 10-07-27
                Time (hr:mnt:sec) = 14:38:224
013754: *Jul 27 11:38:25.001 UTC: %ISDN-6-CONNECT: Interface Serial0/0/0:1 is now connected to 38271499 N/A
013755: *Jul 27 11:38:25.001 UTC: ISDN Se0/0/0:15 Q931: TX -> CONNECT_ACK pd = 8  callref = 0x021E



013756: *Jul 27 11:38:32.065 UTC: %FLEXDSPRM-5-OUT_OF_RESOURCES: No dsps found either locally or globally.
013757: *Jul 27 11:38:32.069 UTC: %ISDN-6-DISCONNECT: Interface Serial0/0/0:1  disconnected from 38271499 , call lasted 7 seconds
013758: *Jul 27 11:38:32.069 UTC: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x021E
        Cause i = 0x80AC - Requested circuit/channel not available
013759: *Jul 27 11:38:32.125 UTC: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x821E
013760: *Jul 27 11:38:32.125 UTC: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x021E



  Best Regards;
  Ahmed Elnagar
  Senior Network PS Engineer

[untitled]
  RAYA Building El Motamiez District, 6th of October, Egypt

  Mob: +2019-0016211
  Phone: +202 3827 6000 Ext.2475
  Website: www.rayacorp.com<http://www.rayacorp.com/>
  E-mail: ahmed_elnagar at rayacorp.com<mailto:ahmed_elnagar at rayacorp.com>
  CCIE#24697 (Voice)
 [ccie_voice_large.gif]


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Disclaimer: NOTICE The information contained in this message is confidential and is intended for the addressee(s) only. If you have received this message in error or there are any problems please notify the originator immediately. The unauthorized use, disclosure, copying or alteration of this message is strictly forbidden. Raya will not be liable for direct, special, indirect or consequential damages arising from alteration of the contents of this message by a third party or as a result of any malicious code or virus being passed on. Views expressed in this communication are not necessarily those of Raya.If you have received this message in error, please notify the sender immediately by email, facsimile or telephone and return and/or destroy the original message.

Disclaimer: NOTICE The information contained in this message is confidential and is intended for the addressee(s) only. If you have received this message in error or there are any problems please notify the originator immediately. The unauthorized use, disclosure, copying or alteration of this message is strictly forbidden. Raya will not be liable for direct, special, indirect or consequential damages arising from alteration of the contents of this message by a third party or as a result of any malicious code or virus being passed on. Views expressed in this communication are not necessarily those of Raya.If you have received this message in error, please notify the sender immediately by email, facsimile or telephone and return and/or destroy the original message.
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