Re: [cisco-voip] [External] Re: Faxing over CUBE SIP Trunks

[Johnson, Tim]

What's the "go to" for an on-prem fax server these days? I've heard Imagicle is 
good.

On Jun 21, 2021 10:24 PM, Pete Brown  wrote:
XMedius…

[cid:image001.png@01D766E3.8B38BE00]

I still remember our CIO screaming at them on a call (veins popping and all) 
after our implementation.  Some poor fella had to fly in from Canada the next 
day to smooth things over.

Definitely second the 9600 baud part.  Solved a few problems for us.


From: cisco-voip 
cisco-voip-boun...@puck.nether.net 
On Behalf Of Kent Roberts
Sent: Monday, June 21, 2021 6:31 PM
To: JASON BURWELL 
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] Faxing over CUBE SIP Trunks

sure.   This is what we had to do to get fax working for use on both vg’s. 
(202/322/fxs) and Rightfax/brook trout cards)
Rightfax has the g711 failback enabled.   IE it controls it not the cube.


Under voip service voip..

Fax protocol t38 version 0 ls-redundancy 0 hs-redundancy-fallback none

sip
Midcall-signaling passthru
header-passing

And the dial-peers towards the carriers:
fax-relay ecm disable
fax rate 14400



Good luck.  Fax is an easy but fun/tough thing to make right. Put 
Wireshark on your server, it helps. Also, ,might need to force the max fax 
rate to 9600.



On Jun 21, 2021, at 12:26 PM, JASON BURWELL via cisco-voip 
mailto:cisco-voip@puck.nether.net>> wrote:

Can anyone offer some guidance doing faxing over SIP Trunks? Ever since 
switching to CUBE SIP trunks I’ve been having challenges with outbound faxes. 
With one provider, it rarely works, the other it works most of the time but is 
not reliable. Sometime it fails and I resend it and works fine. I have an 
Xmedius Fax Server using T38 with G711 fallback. Feel like I am missing 
something, I’ve had a few cases open and a mix of fingerpointing 
(XMedius/Cisco/Provider) and dead ends but no solid resolution. Just figured 
I’d ask out here before I escalate these cases again. Both providers use G711 
codec on the trunks. When I point the calls pack to MGCP PRI I have no issues.

Thanks
Jason

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Re: [cisco-voip] Faxing over CUBE SIP Trunks

[Pete Brown]

XMedius...

[cid:image001.png@01D766E3.8B38BE00]

I still remember our CIO screaming at them on a call (veins popping and all) 
after our implementation.  Some poor fella had to fly in from Canada the next 
day to smooth things over.

Definitely second the 9600 baud part.  Solved a few problems for us.


From: cisco-voip 
cisco-voip-boun...@puck.nether.net 
On Behalf Of Kent Roberts
Sent: Monday, June 21, 2021 6:31 PM
To: JASON BURWELL 
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] Faxing over CUBE SIP Trunks

sure.   This is what we had to do to get fax working for use on both vg's. 
(202/322/fxs) and Rightfax/brook trout cards)
Rightfax has the g711 failback enabled.   IE it controls it not the cube.


Under voip service voip..

Fax protocol t38 version 0 ls-redundancy 0 hs-redundancy-fallback none

sip
Midcall-signaling passthru
header-passing

And the dial-peers towards the carriers:
fax-relay ecm disable
fax rate 14400



Good luck.  Fax is an easy but fun/tough thing to make right. Put 
Wireshark on your server, it helps. Also, ,might need to force the max fax 
rate to 9600.



On Jun 21, 2021, at 12:26 PM, JASON BURWELL via cisco-voip 
mailto:cisco-voip@puck.nether.net>> wrote:

Can anyone offer some guidance doing faxing over SIP Trunks? Ever since 
switching to CUBE SIP trunks I've been having challenges with outbound faxes. 
With one provider, it rarely works, the other it works most of the time but is 
not reliable. Sometime it fails and I resend it and works fine. I have an 
Xmedius Fax Server using T38 with G711 fallback. Feel like I am missing 
something, I've had a few cases open and a mix of fingerpointing 
(XMedius/Cisco/Provider) and dead ends but no solid resolution. Just figured 
I'd ask out here before I escalate these cases again. Both providers use G711 
codec on the trunks. When I point the calls pack to MGCP PRI I have no issues.

Thanks
Jason

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Re: [cisco-voip] Faxing over CUBE SIP Trunks

[Kent Roberts]

sure.   This is what we had to do to get fax working for use on both vg’s. 
(202/322/fxs) and Rightfax/brook trout cards) 
Rightfax has the g711 failback enabled.   IE it controls it not the cube.


Under voip service voip..

Fax protocol t38 version 0 ls-redundancy 0 hs-redundancy-fallback none

sip
Midcall-signaling passthru
header-passing

And the dial-peers towards the carriers:
fax-relay ecm disable
fax rate 14400



Good luck.  Fax is an easy but fun/tough thing to make right. Put 
Wireshark on your server, it helps. Also, ,might need to force the max fax 
rate to 9600.   


> On Jun 21, 2021, at 12:26 PM, JASON BURWELL via cisco-voip 
>  wrote:
> 
> Can anyone offer some guidance doing faxing over SIP Trunks? Ever since 
> switching to CUBE SIP trunks I’ve been having challenges with outbound faxes. 
> With one provider, it rarely works, the other it works most of the time but 
> is not reliable. Sometime it fails and I resend it and works fine. I have an 
> Xmedius Fax Server using T38 with G711 fallback. Feel like I am missing 
> something, I’ve had a few cases open and a mix of fingerpointing 
> (XMedius/Cisco/Provider) and dead ends but no solid resolution. Just figured 
> I’d ask out here before I escalate these cases again. Both providers use G711 
> codec on the trunks. When I point the calls pack to MGCP PRI I have no issues.
>  
> Thanks
> Jason 
>  
> ___
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> cisco-voip@puck.nether.net 
> https://puck.nether.net/mailman/listinfo/cisco-voip 
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Re: [cisco-voip] [External] Re: Faxing over CUBE SIP Trunks

[Johnson, Tim]

Curious what provider you’re using. Right now I’m using XMedius out to Frontier 
and I’d say it works about 95% of the time for outbound, though the majority of 
our outbound goes through VG202XMs. I know it’s typically recommended to use 
the same signaling through the call flow, so run SIP all the way through on 
your end. Avoid MTP or transcoding.

We have the following set on our dial peers:
fax-relay ecm disable
fax-relay sg3-to-g3
fax-relay ans-disable
fax rate 14400
fax nsf 00
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback 
pass-through g711ulaw

Based on the experience, it doesn’t seem like any of them actually do anything 
other than the fax protocol.

From: cisco-voip  On Behalf Of Jason Aarons
Sent: Monday, June 21, 2021 4:26 PM
To: JASON BURWELL 
Cc: cisco-voip 
Subject: [External] Re: [cisco-voip] Faxing over CUBE SIP Trunks

The providers should support t38 to be reliable.

On Mon, Jun 21, 2021, 2:27 PM JASON BURWELL via cisco-voip 
mailto:cisco-voip@puck.nether.net>> wrote:
Can anyone offer some guidance doing faxing over SIP Trunks? Ever since 
switching to CUBE SIP trunks I’ve been having challenges with outbound faxes. 
With one provider, it rarely works, the other it works most of the time but is 
not reliable. Sometime it fails and I resend it and works fine. I have an 
Xmedius Fax Server using T38 with G711 fallback. Feel like I am missing 
something, I’ve had a few cases open and a mix of fingerpointing 
(XMedius/Cisco/Provider) and dead ends but no solid resolution. Just figured 
I’d ask out here before I escalate these cases again. Both providers use G711 
codec on the trunks. When I point the calls pack to MGCP PRI I have no issues.

Thanks
Jason

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Re: [cisco-voip] Faxing over CUBE SIP Trunks

[Jason Aarons]

The providers should support t38 to be reliable.

On Mon, Jun 21, 2021, 2:27 PM JASON BURWELL via cisco-voip <
cisco-voip@puck.nether.net> wrote:

> Can anyone offer some guidance doing faxing over SIP Trunks? Ever since
> switching to CUBE SIP trunks I’ve been having challenges with outbound
> faxes. With one provider, it rarely works, the other it works most of the
> time but is not reliable. Sometime it fails and I resend it and works fine.
> I have an Xmedius Fax Server using T38 with G711 fallback. Feel like I am
> missing something, I’ve had a few cases open and a mix of fingerpointing
> (XMedius/Cisco/Provider) and dead ends but no solid resolution. Just
> figured I’d ask out here before I escalate these cases again. Both
> providers use G711 codec on the trunks. When I point the calls pack to MGCP
> PRI I have no issues.
>
>
>
> Thanks
>
> Jason
>
>
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Re: [cisco-voip] CCX Selected Resource User ID showing as Stars

[Matthew Loraditch]

Thanks, guess I found a bug but if that changed line does what I need, not 
going to bother with tac!


Matthew Loraditch
Sr. Network Engineer
(He/Him/His)
p: 443.541.1518
w: www.heliontechnologies.com | e: mloradi...@heliontechnologies.com
From: Anthony Holloway 
Sent: Thursday, June 17, 2021 1:54 PM
To: Matthew Loraditch 
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] CCX Selected Resource User ID showing as Stars

[EXTERNAL]

Interesting!  I just tried something like this in 12.5(1) and I get the same 
thing as you.

I did achieve the desired outcome using the Get User Info step instead of 
casting the User object to a String,

cleanAgentID = Get User Info (selectedResource, Identifier)

On Tue, Jun 15, 2021 at 2:02 PM Matthew Loraditch 
mailto:mloradi...@heliontechnologies.com>> 
wrote:
We collect the name of the agent for recording to our ticketing system.

Apparently no one has used this piece of  data in a long time, but I noticed it 
today. All agents are showing up as “***”

CCX 12.5

Here is what the script does:
[cid:image001.png@01D766AD.5212AD10]

And the values I got in my debug:


[cid:image002.png@01D766AD.5212AD10]

What is going on here? Do I need to change how I capture this?

Matthew Loraditch​
Sr. Network Engineer
(He/Him/His)
p: 443.541.1518
w: www.heliontechnologies.com
 |
e: mloradi...@heliontechnologies.com
[Helion Technologies]
[Facebook]
[Twitter]
[LinkedIn]
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[cisco-voip] Faxing over CUBE SIP Trunks

[JASON BURWELL via cisco-voip]

Can anyone offer some guidance doing faxing over SIP Trunks? Ever since 
switching to CUBE SIP trunks I've been having challenges with outbound faxes. 
With one provider, it rarely works, the other it works most of the time but is 
not reliable. Sometime it fails and I resend it and works fine. I have an 
Xmedius Fax Server using T38 with G711 fallback. Feel like I am missing 
something, I've had a few cases open and a mix of fingerpointing 
(XMedius/Cisco/Provider) and dead ends but no solid resolution. Just figured 
I'd ask out here before I escalate these cases again. Both providers use G711 
codec on the trunks. When I point the calls pack to MGCP PRI I have no issues.

Thanks
Jason

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Re: [cisco-voip] Suggestions on book on SIP protocol?

[Benjamin Turner]

SIP Demystified
Book by Gonzalo Camarillo

TheSIPSchool was also very helpful.

Sincerely,
Benjamin M. Turner


From: cisco-voip  on behalf of Eric 
Pedersen 
Sent: Monday, June 21, 2021 12:58:05 PM
To: ROZA, Ariel 
Cc: cisco-voip (cisco-voip@puck.nether.net) 
Subject: Re: [cisco-voip] Suggestions on book on SIP protocol?


I have this  book from a number of years ago and found it quite useful. I like 
having a resource that isn't Cisco-centric.



SIP: Understanding the Session Initiation Protocol, Fourth edition: Johnston, 
Alan B.: 9781608078639: Amazon.com: 
Books







From: cisco-voip  On Behalf Of ROZA, Ariel 
via cisco-voip
Sent: June 15, 2021 8:55 AM
To: cisco-voip (cisco-voip@puck.nether.net) 
Subject: [cisco-voip] Suggestions on book on SIP protocol?



People,



Can anyone give me a good reference on books that explain the SIP Protocol?



I already have a significant working knowledge on SIP. I have set up some 
trunks On CUCM and CUBE and troubleshooted many more. But I am still lacking on 
the WHYs of many things. So I am looking, for example, for theoretical 
explanations of SIP call flows and the variations of headers and options, 
without being dry as hell as a RFC or Cisco technical documents. Some good book 
that can be used as reference material.

One of the issues I have with Cisco tech notes is that when they do 
examples-by-debug often they lack explanations or discussion of possibilities.



What have you people read and can recommend?



Regards,



Ariel Pablo Roza

Post Sales UC Engineer / Southern Cone [cid:image001.png@01D7668C.4F44EA10]



t: (011) 5282-0458

m: (011) 5017-4417

ariel.r...@la.logicalis.com

Av. Belgrano 955 – Piso 20 - C1092AAJ

CABA – Buenos Aires - Argentina

www.la.logicalis.com



[cid:image002.png@01D7668C.4F44EA10]

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Re: [cisco-voip] Suggestions on book on SIP protocol?

[Eric Pedersen]

I have this  book from a number of years ago and found it quite useful. I like 
having a resource that isn't Cisco-centric.

SIP: Understanding the Session Initiation Protocol, Fourth edition: Johnston, 
Alan B.: 9781608078639: Amazon.com: 
Books



From: cisco-voip  On Behalf Of ROZA, Ariel 
via cisco-voip
Sent: June 15, 2021 8:55 AM
To: cisco-voip (cisco-voip@puck.nether.net) 
Subject: [cisco-voip] Suggestions on book on SIP protocol?

People,

Can anyone give me a good reference on books that explain the SIP Protocol?

I already have a significant working knowledge on SIP. I have set up some 
trunks On CUCM and CUBE and troubleshooted many more. But I am still lacking on 
the WHYs of many things. So I am looking, for example, for theoretical 
explanations of SIP call flows and the variations of headers and options, 
without being dry as hell as a RFC or Cisco technical documents. Some good book 
that can be used as reference material.
One of the issues I have with Cisco tech notes is that when they do 
examples-by-debug often they lack explanations or discussion of possibilities.

What have you people read and can recommend?

Regards,

Ariel Pablo Roza
Post Sales UC Engineer / Southern Cone [cid:image001.png@01D7668C.4F44EA10]

t: (011) 5282-0458
m: (011) 5017-4417
ariel.r...@la.logicalis.com
Av. Belgrano 955 - Piso 20 - C1092AAJ
CABA - Buenos Aires - Argentina
www.la.logicalis.com


[cid:image002.png@01D7668C.4F44EA10]

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The contents of this message may contain confidential and/or privileged 
subject matter. If this message has been received in error, please contact 
the sender and delete all copies. Like other forms of communication, 
e-mail communications may be vulnerable to interception by unauthorized 
parties. If you do not wish us to communicate with you by e-mail, please 
notify us at your earliest convenience. In the absence of such 
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