[cisco-voip] fax passthrough + fax relay on same MGCP gateway (incl 6608)?

Mon Apr 19 16:37:12 EDT 2010

kapow. 

don't the end devices have to support T.38 though? i mean, assuming everything is configured correctly, is the end device still not a concern? 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 

----- Original Message ----- 
From: "Nick Matthews" <matthnick at gmail.com> 
To: "Lelio Fulgenzi" <lelio at uoguelph.ca> 
Cc: "cisco-voip voyp list" <cisco-voip at puck.nether.net> 
Sent: Monday, April 19, 2010 4:26:55 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] fax passthrough + fax relay on same MGCP gateway (incl 6608)? 

Because it's a legacy proprietary method cisco created when we first 
started doing voice. It has not been updated or touch in years, and 
they've removed support for it in 15.0. 

-nick 

On Mon, Apr 19, 2010 at 3:33 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote: 
> Yeah, I figured the 6608 would be the dawg here. 
> 
> Why is CFR bad? 
> 
> --- 
> Lelio Fulgenzi, B.A. 
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
> Cooking with unix is easy. You just sed it and forget it. 
> - LFJ (with apologies to Mr. Popeil) 
> 
> 
> ----- Original Message ----- 
> From: "Nick Matthews" <matthnick at gmail.com> 
> To: "Lelio Fulgenzi" <lelio at uoguelph.ca> 
> Cc: "cisco-voip voyp list" <cisco-voip at puck.nether.net> 
> Sent: Monday, April 19, 2010 3:31:00 PM GMT -05:00 US/Canada Eastern 
> Subject: Re: [cisco-voip] fax passthrough + fax relay on same MGCP gateway 
> (incl 6608)? 
> 
> I don't think the 6608 will do more than one type at a time. The 
> VG248 is stuck with CFR (BAD) or passthrough. This one is pretty 
> simple. 
> 
> -nick 
> 
> On Mon, Apr 19, 2010 at 1:41 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote: 
>> I've done some more reading, but I'm still confused on a few things fax. 
>> This thread is to hopefully help me understand if I can run both fax 
>> passthrough and fax relay on the same MGCP gateways, including 6608s. 
>> 
>> We have a site (Site B) coming on board that is currently using cisco fax 
>> relay on their gateway and on most of their VG248 ports (some VG248 ports 
>> have relay disabled). They have a 3725 running a PRI (MGCP). 
>> 
>> HQ (Site A) has a bank of 6608s (MGCP) and a couple of PRIs on a 3845 on a 
>> remote gateway (also MGCP). We have VG224 ports used for modems/faxes at 
>> the 
>> remote site. Everything is configured for fax passthrough and is working 
>> hunky dory. 
>> 
>> Is it possible to configure the HQ gateways (both 6608s and 3845 ports) to 
>> recognize both passthrough and relay? Are there problems doing this? 
>> 
>> I've included some relevant config info below. 
>> 
>> ________________________________ 
>> CallManager 4.1(3) -> upgrading to CUCM 7.1(3) sometime next summer. 
>> ________________________________ 
>> SITE A: 
>> 
>> GATEWAY (3845) [remote gateway] 
>> 
>> ! 
>> boot system flash:c3845-spservicesk9-mz.124-11.T2.bin 
>> ! 
>> no ccm-manager fax protocol cisco 
>> ! 
>> mgcp 
>> mgcp call-agent 10.104.96.104 2427 service-type mgcp version 0.1 
>> mgcp dtmf-relay voip codec all mode out-of-band 
>> mgcp rtp unreachable timeout 1000 action notify 
>> mgcp modem passthrough voip mode nse 
>> mgcp package-capability rtp-package 
>> no mgcp package-capability res-package 
>> mgcp package-capability sst-package 
>> no mgcp package-capability fxr-package 
>> mgcp package-capability pre-package 
>> no mgcp timer receive-rtcp 
>> mgcp sdp simple 
>> mgcp fax t38 inhibit 
>> mgcp rtp payload-type g726r16 static 
>> mgcp bind control source-interface Loopback104 
>> mgcp bind media source-interface Loopback104 
>> ! 
>> 
>> 6608 (at HQ): 
>> 
>> Voice Calls: checked 
>> Modem Calls: checked 
>> Fax Calls: checked 
>> 
>> Fax Relay Enable: unchecked 
>> Fax Error Correction: unchecked 
>> Max Fax Rate: 14400 
>> Payload Size: 20 
>> Country Code: 65535 
>> Vendor Code: 65535 
>> Fax/Modem Packet Redundancy: unchecked 
>> NSE Type: IOS Gateway 
>> 
>> VG224 
>> 
>> ! 
>> voice service voip 
>> mgcp modem passthrough voip codec g711ulaw 
>> ! 
>> ________________________________ 
>> SITE B: 
>> 
>> GATEWAY: 
>> 
>> ! 
>> boot system flash c3725-ipvoice-mz.123-8.T3.bin 
>> ! 
>> mgcp 
>> mgcp call-agent 10.104.184.6 2427 service-type mgcp version 0.1 
>> mgcp dtmf-relay voip codec all mode out-of-band 
>> mgcp rtp unreachable timeout 1000 action notify 
>> mgcp modem relay voip mode nse 
>> mgcp package-capability rtp-package 
>> mgcp package-capability sst-package 
>> no mgcp package-capability fxr-package 
>> no mgcp timer receive-rtcp 
>> mgcp sdp simple 
>> mgcp fax rate 14400 
>> no mgcp fax t38 ecm 
>> mgcp fax t38 inhibit 
>> no mgcp explicit hookstate 
>> mgcp rtp payload-type g726r16 static 
>> ! 
>> 
>> VG248: 
>> 
>> Software version : 1.3(2) 
>> 
>> port specific parameters: 
>> 
>> ---------------------------------------------------------- 
>> | Cisco VG248 (VGC0e38cd87ee) | 
>> --------------- ------------------------------------------------ 
>> ------- 
>> | Port selection| Port 1 parameters | 
>> | 
>> 
>> |---------------|------------------------------------------------|-------| 
>> | 1 Enabled | Status (enabled) | 
>> | 
>> | 2 Enabled 4| Call control mode (standard) | 
>> | 
>> | 3 Enabled 6| Caller ID (disabled) | 
>> | 
>> | 4 Enabled 6| MWI method (none) | 
>> | 
>> | 5 Enabled 6| VMWI variant (<country default>) | 
>> | 
>> | 6 Enabled 6| Call supervision method (none) | 
>> | 
>> | 7 Enabled 6| Input gain (0) | 
>> | 
>> | 8 Enabled 6| Output gain (0) | 
>> | 
>> | 9 Enabled 6| Dialing digit detection (default: use DSP) | 
>> | 
>> | 10 Disabled | Fax relay (Cisco fax relay) | 
>> | 
>> | 11 Disabled | Fax relay ECM (disabled) | 
>> | 
>> | 12 Disabled | Fax relay NSF (override with 000000) | 
>> | 
>> | 13 Enabled 6| Passthrough mode (default: automatic) | 
>> | 
>> | 14 Enabled 6 ------------------------------------------------ 
>> | 
>> | 15 Enabled 6282 31 Disabled 47 Disabled 
>> | 
>> | 16 Disabled 32 Disabled 48 Disabled 
>> | 
>> | '*' - port in use press 'R' to enter range 
>> | 
>> 
>> ------------------------------------------------------------------------ 
>> 
>> ---------------------------------------------------------- 
>> | Cisco VG248 (VGC0e38cd87ee) | 
>> -------------------------------------------------------------- 
>> | Advanced settings 
>> | 
>> 
>> |--------------------------------------------------------------| 
>> |^Media receive timeout (disabled) 
>> | 
>> | Port busy signaling (none) 
>> | 
>> | DTMF tone duration (default: 100ms) 
>> | 
>> | Echo cancelling policy (default: use SLIC) 
>> | 
>> | Hook flash timer (<country default>) 
>> | 
>> | Hook flash reject period (none) 
>> | 
>> | Distinctive ringing (default: no call distinction) 
>> | 
>> | Passthrough signaling (IOS mode) 
>> | 
>> | Passthrough codec (G.711 u-law) 
>> | 
>> | Fax relay payload size (default: 20) 
>> | 
>> | Fax relay maximum speed (default: 14400 bps) 
>> | 
>> | Fax relay playout delay (default: 300) 
>> | 
>> | Load control (disabled) 
>> | 
>> | Load control (% CPU) (0) 
>> | 
>> | Load control hysteresis (0) 
>> | 
>> -------------------------------------------------------------- 
>> 
>> 
>> ________________________________ 
>> --- 
>> Lelio Fulgenzi, B.A. 
>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
>> Cooking with unix is easy. You just sed it and forget it. 
>> - LFJ (with apologies to Mr. Popeil) 
>> 
>> 
>> _______________________________________________ 
>> cisco-voip mailing list 
>> cisco-voip at puck.nether.net 
>> https://puck.nether.net/mailman/listinfo/cisco-voip 
>> 
>> 
> 
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