[cisco-voip] Drop call for 911?
Wes Sisk
wsisk at cisco.com
Mon Dec 22 10:00:04 EST 2008
did you try assigning the gateway to its own location and setting the
location bandwidth to only allow 2 calls?
In that case MLPP should drop one call completely internal to CUCM. No
knowledge of the gateway is required and no specific support.
/wes
On Thursday, December 18, 2008 5:09:15 PM, Scott Voll
<svoll.voip at gmail.com> wrote:
> Here it is:
>
> have 2 POTS lines coming in on an FXO via 2801 MGCP with CM 6.1.
> Call flow is external calls come in via those two POTS lines. All out
> bound calls go over WAN and out Central site.
>
> had the problem the other day when they dailed 911 the already had two
> incoming calls that were active. Thus the 911 calls that are CSS to
> go out the 2 POTS lines could not. Ryan suggested MLPP.
>
> Tried to set it up but does not work so I opened a TAC case.
> Basically per this doc. FXO is not supported (or work for that matter)
>
> http://www.cisco.com/en/US/docs/ios/12_3t/12_3t14/feature/guide/gtstcapp.html#wp1119122
>
> So I gues I need to buy another VIC and order another POTS Line just
> for 911 access unless somone else has a better idea. I was scheduled
> to buy CER which would have also taken care of it.... but with Budget
> cuts lately that's out too.
>
> I'm all ears for other ideas.
>
> Scott
>
> On Mon, Dec 15, 2008 at 10:11 PM, Wes Sisk <wsisk at cisco.com
> <mailto:wsisk at cisco.com>> wrote:
>
> forgive my terminology here, i worked on the feature but resisted
> the dictionary.
>
> i believe MLPP can only preempt a lower priority call. the first 4
> 911 calls will go with the same priority level. the 5th call has
> the same priority level as the previous 4. 5th call will not
> preempt the previous 4 calls of the same level.
>
> if you're saying that calls 1-4 are 'normal' calls with lower
> priority then the 5th call can route via 911 translation pattern,
> increase priority, and preemtp the first calls. you can setup
> locations CAC to get the gateway only allowing 4 calls. MLPP will
> interact with CAC to drop the existing call.
>
> All that said enabling MLPP changes lots of native CUCM behavior
> such as forwarding intercepts. this may be an overkill.
>
> /wes
>
>
> On Monday, December 15, 2008 9:34:19 AM, Fuermann, Jason
> <JBF005 at shsu.edu> <mailto:JBF005 at shsu.edu> wrote:
>>
>> I only say that because I have not heard of anyone successfully
>> using MLPP for 911, and without MLPP there is only one way to
>> ensure a 911 call goes out.
>>
>>
>>
>> *From:* 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 *Dennis
>> Heim
>> *Sent:* Friday, December 12, 2008 7:29 PM
>> *To:* Fuermann, Jason; lelio at uoguelph.ca
>> <mailto:lelio at uoguelph.ca>; Scott Voll
>> *Cc:* cisco-voip voyp list
>> *Subject:* Re: [cisco-voip] Drop call for 911?
>>
>>
>>
>> CAMA is old school… but they work and do their job without much
>> work at all.
>>
>>
>>
>> Dennis Heim
>> Network Voice Engineer
>> Berbee
>> 11711 N. Meridian Street, Suite 225
>> Carmel, IN 46032
>>
>> 317.569.4255 Office
>> 317.569.4201 Fax
>> 317.694.6070 Cell
>>
>> dennis.heim at cdw.com <mailto:dennis.heim at cdw.com>
>> www.berbee.com <http://www.berbee.com/>
>>
>>
>>
>> *From:* 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
>> *Fuermann, Jason
>> *Sent:* Friday, December 12, 2008 4:56 PM
>> *To:* 'lelio at uoguelph.ca <mailto:lelio at uoguelph.ca>'; Scott Voll
>> *Cc:* cisco-voip voyp list
>> *Subject:* Re: [cisco-voip] Drop call for 911?
>>
>>
>>
>> Don't rule out a CAMA trunk
>>
>>
>>
>> *From:* 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
>> *lelio at uoguelph.ca <mailto:lelio at uoguelph.ca>
>> *Sent:* Friday, December 12, 2008 3:09 PM
>> *To:* Scott Voll
>> *Cc:* cisco-voip voyp list
>> *Subject:* Re: [cisco-voip] Drop call for 911?
>>
>>
>>
>> Looks like BRI time for you!
>>
>> Lelio Fulgenzi, Senior Analyst
>>
>> Computing & Communications
>>
>> University of Guelph
>>
>> 519-824-4120 x56354
>>
>>
>>
>> ...sent from my iPod - please pardon my fat fingers ;)
>>
>>
>>
>> [XKJ2000]
>>
>>
>> On Dec 12, 2008, at 3:58 PM, "Scott Voll" <svoll.voip at gmail.com
>> <mailto:svoll.voip at gmail.com>> wrote:
>>
>> H323 is supported? with FXO?
>>
>>
>>
>> It seems Like FXO on a MGCP VGW may not be supported.
>>
>>
>>
>> Scott
>>
>>
>>
>> sr. 610287387
>>
>> On Fri, Dec 12, 2008 at 11:20 AM, Ryan Ratliff
>> <rratliff at cisco.com <mailto:rratliff at cisco.com>> wrote:
>>
>> I've never configured it personally but it does show that
>> H.323 gateways are supported for MLPP.
>>
>>
>>
>> You'd definitely have to do some testing.
>>
>>
>>
>> -Ryan
>>
>>
>>
>> On Dec 12, 2008, at 2:00 PM, Michael Thompson wrote:
>>
>>
>>
>> I know a couple of people that have tried to use MLPP for
>> this app.
>>
>>
>>
>> If you look at the specs, there are specific requirements for
>> use of MLPP.
>>
>> Analog lines don't fit into that spec.
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>>
>> From: 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
>> lelio at uoguelph.ca <mailto:lelio at uoguelph.ca>
>>
>> Sent: Thursday, December 11, 2008 3:45 PM
>>
>> To: Scott Voll
>>
>> Cc: cisco-voip at puck.nether.net
>> <mailto:cisco-voip at puck.nether.net>
>>
>> Subject: Re: [cisco-voip] Drop call for 911?
>>
>>
>>
>> MLPP enabled route patterns?
>>
>>
>>
>> Lelio Fulgenzi, Senior Analyst
>>
>> Computing & Communications
>>
>> University of Guelph
>>
>> 519-824-4120 x56354
>>
>>
>>
>> ...sent from my iPod - please pardon my fat fingers ;)
>>
>>
>>
>> [XKJ2000]
>>
>>
>>
>> On Dec 11, 2008, at 2:50 PM, "Scott Voll"
>> <svoll.voip at gmail.com <mailto:svoll.voip at gmail.com>> wrote:
>>
>>
>>
>> I have a site that has 4 Pots lines and those are also
>> the lines
>>
>> they would dial 911 on. if all 4 lines were in use, is
>> there a way
>>
>> to disconnect one so that the 911 call could still go
>> out? CM 6.1.2?
>>
>>
>>
>> other options beside more Pots lines or removing one of
>> the incoming
>>
>> lines?
>>
>>
>>
>> TIA
>>
>>
>>
>> Scott
>>
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