[cisco-voip] UCCX out bound dialing

Lelio Fulgenzi lelio at uoguelph.ca
Thu Nov 29 13:17:39 EST 2012


thanks for doing this Peter. 

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


----- Original Message -----
From: "Peter Slow" <peter.slow at gmail.com> 
To: "Matthew Saskin" <msaskin at gmail.com> 
Cc: cisco-voip at puck.nether.net 
Sent: Thursday, November 29, 2012 1:13:26 PM 
Subject: Re: [cisco-voip] UCCX out bound dialing 

googled for "CPA cisco dialing" and found this, since i didnt know 
wahat CPA was =P 
http://www.cisco.com/en/US/tech/tk652/tk701/technologies_tech_note09186a0080b2ad01.shtml 
"Call Progress Analysis (CPA) is the new DSP algorithm that analyzes 
the TDM voice stream to look for SITs, fax/modem tones, human speech, 
and answering machines. CPA also passes information to Cisco IOS®. 
There is a new SIP application type, x-cisco-cpa, for callers to 
request a CPA operation and for the gateway to relay information to 
the caller. CPA is supported only on the TDM gateway where one of the 
call legs is terminated." 

...The feature is implemented in DSPs (DSPWare) used for TDM 
termination. (also it looks like it's supported using SIP now...) 
the requirement is that you need to be doing the signaling from your 
cisco whatever (presumably CUCM) directly to the terminating gateway. 
no DSPs are used when you send a call through a CUBE. (and its 
probably safe to say that forcing it to invoke a transcoder so that 
there IS a DSP wont work) 

hopefully that sheds some light on why they're trying to get you to 
use PRIs, but even if you do it that way and can use the FEATURE you 
are not going not get reliable results over VoIP. Unfortunately it 
seems liek you need to change your provider or accept that this 
functionality isnt goign to work properly (or at all) 
even if you get CUCM/UCCE/UCCX to work by looping PRIs at your 
gateway, modem and fax tones are likely not going to be transmitted 
well enough over normal VoIP for this feature to work. 

..you could spend hours making sure modem/fax pas-through works well, 
but doign that for this purpose is dependant on your providers support 
and seems silly. 

-Peter 






On Thu, Nov 29, 2012 at 11:43 AM, Matthew Saskin <msaskin at gmail.com> wrote: 
> ...and I just read your subject fully. It's well documented for UCCE. 
> Apparently less well documented for UCCX, but the same caveat would probably 
> apply. The issue is that for SIP outbound, the CUBE is not currently 
> capable of performing CPA. I don't know enough about the inner mechanisms 
> of the UCCX outbound dialer to comment further - sorry. 
> 
> Matthew Saskin 
> msaskin at gmail.com 
> 203-253-9571 
> 
> 
> 
> 
> On Thu, Nov 29, 2012 at 11:41 AM, Matthew Saskin <msaskin at gmail.com> wrote: 
>> 
>> It's a known caveat - SIP trunks via CUBE cannot be used for the UCCE 
>> outbound dialer. This is documented in the SRND, compatibility matrix, and 
>> outbound option config guide. 
>> 
>> Matthew Saskin 
>> msaskin at gmail.com 
>> 203-253-9571 
>> 
>> 
>> 
>> On Thu, Nov 29, 2012 at 10:54 AM, Haas, Neal <nhaas at co.fresno.ca.us> 
>> wrote: 
>>> 
>>> Is it true that CPA cannot use a SIP trunk for outbound dialing? TAC told 
>>> us we needed to use a PRI for out bound campaigns. 
>>> 
>>> 
>>> 
>>> CPA only works it seems with PRI’s using H323. (I guess) 
>>> 
>>> The TAC engineers over at cisco are looking into how we can make this 
>>> work Using I think they are saying H323 sip dial peers to a PRI. 
>>> 
>>> 
>>> 
>>> NOT how we wanted this to work or were told for that matter. Seems like 
>>> they (Cisco) are using old school technology to make this work. 
>>> 
>>> 
>>> 
>>> Does anyone use SIP for campaign dialing? 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> Neal Haas 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________ 
>>> cisco-voip mailing list 
>>> cisco-voip at puck.nether.net 
>>> https://puck.nether.net/mailman/listinfo/cisco-voip 
>>> 
>> 
> 
> 
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