[cisco-voip] Cube sip overlap dialing support status ....

[Nate VanMaren]

We've moved from H.323 to SIP for our gateways, all except Germany because UCM can't do SIP overlap dialing.  I think from what I remember the gateways could do it, but I might be wrong.

It was very hard for me to find a TAC engineer who could help with overlap dialing issues, let alone know what that really was.

-Nate

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Nick Matthews
Sent: Sunday, September 23, 2012 5:33 PM
To: Christian Kratzer
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Cube sip overlap dialing support status ....

It's worth noting that overlap sending is a specific way of receiving digits over ISDN. An intial setup is sent and then additional digits are sent over time in other messages to complete the dialing.  An overlapping dial plan is still fine.  If you're doing SIP in Germany my first guess is that they will not be doing overlap sending over SIP simply because there's limited support for it in most SIP software.  If you have to convert an ISDN line to SIP, then it is definitely a concern if you're currently doing overlap sending.

-nick
On Fri, Sep 21, 2012 at 12:15 PM, Christian Kratzer <ck-lists at cksoft.de<mailto:ck-lists at cksoft.de>> wrote:
Hi Erich,


On Fri, 21 Sep 2012, Erich Novak wrote:
Hi,

if you've got access to Cisco Live 365 (https://www.ciscolive365.com) -
view the advanced dialplan design session by Johannes Krohn - very
informative - and somewhere in the middle of the video he mentions, that
overlap sending is not supported on SIP trunks -neither CUCM nor CUBE. It
is something he wants on the roadmap, but it is definitely not in CUCM
9.0...

thanks for the pointer and the confirmation.  I will check out the session. Looks quite interesting anyway ;)

Greetings
Christian


brgds
Erich

Am 21.09.12 17:38 schrieb "Christian Kratzer" unter <ck-lists at cksoft.de<mailto:ck-lists at cksoft.de>>:
Hi,

On Fri, 21 Sep 2012, Nick Matthews wrote:
This is called overlap sending in Cisco world and should be supported as
far as I know.

apparantly this is not supported on SIP trunks as I cannot find any
details on how to configure overlap sending on sip.

It does work on ISDN and there is support for SCCP and even SIP phones
registering to a CME router. H323 shoud also work.

I just can't find any support for overlap sending with SIP going out of
CUBE.

I would be interested on confirming this and hearing about any roadmaps
to add overlap sending to sip trunks.

As well, overlapping dial plans are supported and shouldn't
cause problems in standard CUBE scenarios, minus some potential for call
looping if not properly configured.  I would use 'huntstop' on the last
possible dial peer for any given situation to make sure it doesn't hunt
down the wrong path potentially.

Greetings
Christian


-nick

On Wed, Sep 19, 2012 at 4:03 PM, Jason Aarons (AM) <
jason.aarons at dimensiondata.com<mailto:jason.aarons at dimensiondata.com>> wrote:
Why not press # when done dialing?****

** **

*From:* cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:
cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] *On Behalf Of *Christian Kratzer
*Sent:* Wednesday, September 19, 2012 3:26 PM
*To:* cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
*Cc:* Christian Kratzer
*Subject:* [cisco-voip] Cube sip overlap dialing support status
....****

** **



Hi,

not sure if my google foo is broken but I cannot find any information
on
sip overlap dialing (rfc3578) support on cisco CUBE.

I would like to retain the user experience of instant dialing when
migrating from isdn to sip trunks. We have wildly varying dial plans
in germany with no way to guess the length of the number so overlap
dialing is the only way to stop users complaining about the interdigit
delay.

Greetings
Christian

--
Christian Kratzer CK Software GmbH
Email: ck at cksoft.de<mailto:ck at cksoft.de> Wildberger Weg 24/2
Phone: +49 7032 893 997 - 0<tel:%2B49%207032%20893%20997%20-%200> D-71126 Gaeufelden
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itevomcid ****


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Christian Kratzer                      CK Software GmbH
Email:   ck at cksoft.de<mailto:ck at cksoft.de>                  Wildberger Weg 24/2
Phone:   +49 7032 893 997 - 0<tel:%2B49%207032%20893%20997%20-%200>          D-71126 Gaeufelden
Fax:     +49 7032 893 997 - 9<tel:%2B49%207032%20893%20997%20-%209>          HRB 245288, Amtsgericht Stuttgart
Web:     http://www.cksoft.de/         Geschaeftsfuehrer: Christian
Kratzer
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--
Christian Kratzer                      CK Software GmbH
Email:   ck at cksoft.de<mailto:ck at cksoft.de>                  Wildberger Weg 24/2
Phone:   +49 7032 893 997 - 0<tel:%2B49%207032%20893%20997%20-%200>          D-71126 Gaeufelden
Fax:     +49 7032 893 997 - 9<tel:%2B49%207032%20893%20997%20-%209>          HRB 245288, Amtsgericht Stuttgart
Web:     http://www.cksoft.de/         Geschaeftsfuehrer: Christian Kratzer

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