[cisco-voip] internal numbers ID masking

Mon Oct 6 15:29:06 EDT 2008

Follow-up to this problem, in case anyone else runs into it.

TAC helped me come up with a work-around. while it doesn't completely fix
the issue it at least solves the specific users' problems that we were
having.

Phone A - Secretary, published number
Phone B - Executive, unpublished number, caller ID masked for on and offnet
calls

Specific problem.. callers desiring to speak with the executive would call
the published number (Phone A). If appropriate, secretary would transfer the
caller to the executives line on Phone B. If the caller is on an IP Phone,
once the call is connected, the caller can see the executives dn as the
"connected line ID" on their IP Phone screen. Any attempts to restrict
connected line ID with a translation pattern resulted in voicemail not
working correctly (the "forwarding number" gets cleared for a call if it
passes through a translation pattern that restricts the connected line ID).

Workaround for us was:
Apply a translation pattern to the secretary's CSS such that if he/she calls
or transfers to the executive's line, it restricts BOTH the connected line
ID and the connected name presentation. For some reason, this only works if
both of those settings are restricted. Then, create a voicemail profile
specifically for the executive's directory number that specifices the line
number as the number mask, and apply it to the executive's line. This isn't
very scalable and only works if you have some control over who will be
transfering to the executive. But it seems to work out for us at least.

If the executive calls out somewhere and gets transfered to another IP
phone, the connected line ID will still be displayed. Fixing this situation
would seem to require an individual voicemail profile for every unique DN on
the phone system. Yuck.

According to the developers via TAC, the connected line id restriction
settings are working as intended, and if we want it to function with Unity
we'll have to put in a feature request through our account team. Still seems
like a flaw to me, but i'm going to at least let my account folks know about
the problem and see what our chances are for getting the "feature" added
some day. I need to review the feature requests out on CIPTUG's system also
to see if there is a request like this already in place so I can throw some
more votes at it.

Ed

On Fri, Sep 19, 2008 at 1:52 PM, Ed Leatherman <ealeatherman at gmail.com>wrote:

> FYI after a case with TAC, they determined that it is working as directed.
> So you can mask caller ID, but not connected party line information without
> screwing up voicemail. It's "working as intended" and the only option is to
> create a seperate voicemail profile mask for each phone that specifies the
> extension number, and/or try to get a product enhancement request placed.
>
> So if I want this to work at all I basically need 4000 individual voicemail
> profiles for every line on my system. I don't recall any quick way to BAT
> create those.
>
> Not satisfactory but not sure at this point what I can even do about it. It
> seems more like a bug than a new feature request, but I don't claim to
> understand the inner workings of how connected line ID relates to the
> forwarding number.
>
> If I think of something else I'll pass it along though, i'm sure others
> might run into this at some point.
>
>
>
>
> On Thu, Sep 11, 2008 at 3:15 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
>
>>  I set up translations that bypass the masking, like police and
>> voicemail.
>>
>> But that being said, I should look at our translations to see if I block
>> connected party presentation!
>>
>> Lelio
>>
>> --------------------------------------------------------------------------------
>> Lelio Fulgenzi, B.A.
>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> ...seen on a Geek Squad patch cord: "While it is the same length, this 7'
>> crossover cable
>> is not regulation issue for most competitive Manhattan double dutch
>> leagues.
>>
>> ----- Original Message -----
>>  *From:* Ed Leatherman <ealeatherman at gmail.com>
>>  *To:* cisco-voip at puck.nether.net
>> *Sent:* Thursday, September 11, 2008 3:09 PM
>> *Subject:* Re: [cisco-voip] internal numbers ID masking
>>
>> Sorry to revive an old thread, but running into a "new" snag in this, at
>> least something we hadn't considered before.
>>
>> I set up internal caller-ID masks per below, normally everything is fine.
>> But we've discovered that if a secretary transfers a caller in to the person
>> who's number is supposed to be masked, their true number is displayed on the
>> calling party's IP Phone as the connected number. Don't ask me how we've
>> missed that one for the passed 4 years.
>>
>> I've changed my translation pattern to restrict the "connected line id
>> presentation" which did the trick.. but it totally scewed up their voicemail
>> now. If a masked party calls someone and gets forwarded to voicemail, they
>> get Unity's opening greeting rather than the called person's mailbox. When i
>> look at the call viewer in unity, it looks like the forwarding number is
>> blank. What would the connected party line ID of the caller have to do with
>> the forwarding number?
>>
>> CCM 5.1.3
>> Unity 4.2
>>
>>
>> On Wed, Apr 5, 2006 at 8:41 PM, Ed Leatherman <ealeatherman at gmail.com>wrote:
>>
>>> I never noticed the "Restricted" setting on there (or didnt realize what
>>> it was for). A lot of the users request that their secretaries numbers show
>>> up instead.. but for the ones that just what "Private" that would be quite a
>>> bit easier to just reuse one. Thanks!
>>>
>>> On 4/5/06, Kevin Thorngren <kthorngr at cisco.com> wrote:
>>>>
>>>> Right, I missed Ed's statement of "and of course, all masked as
>>>> something different" :-)  As Lelio mentioned the easiest way is to
>>>> Restrict the Calling Line ID and Calling Name (if appropriate) in the
>>>> Translation Pattern.  There is no easy mechanism to change the Caller
>>>> ID on a phone by phone basis.  One could write a script to query a DB
>>>> and mask the Caller ID based on the source of the call.  This way only
>>>> the DB would need to be updated.  To make it seamless all internal
>>>> calls should be intercepted by this script but it could be built so
>>>> only those phones that need to mask the Caller ID are intercepted.
>>>> Building a system that would be robust enough to handle the call volume
>>>> might be a challenge and potentially costly.
>>>>
>>>> I would agree that having the ability to restrict the Caller ID info
>>>> from the phone would be best.  Interesting changes would be the ability
>>>> to restrict the ID and Name and also an Internal Phone Number Mask.
>>>> Not sure if either of these are on the roadmap.
>>>>
>>>> Kevin
>>>> On Apr 4, 2006, at 10:06 PM, Lelio Fulgenzi wrote:
>>>>
>>>> > It's basically a new partition (and everything else) for every
>>>> > modified mask you want.
>>>> >
>>>> > It would be very handy to have this on a per phone basis.
>>>> >> ----- Original Message -----
>>>> >> From: Kevin Thorngren
>>>> >> To: Ed Leatherman
>>>> >> Cc: cisco-voip at puck.nether.net ; Grullon,David
>>>> >> Sent: Tuesday, April 04, 2006 10:03 PM
>>>> >> Subject: Re: [cisco-voip] internal numbers ID masking
>>>> >>
>>>> >> Out of curiosity - why do you create a new Partition, CSS and
>>>> >> Translation Pattern for each phone that wants to hide the Caller ID?
>>>> >>
>>>> >> Kevin
>>>> >> On Apr 4, 2006, at 9:19 PM, Ed Leatherman wrote:
>>>> >>
>>>> >>> If someone knows a better/cleaner way to do this, I would be
>>>> >>> ecstatic to hear it. this is a big pain in the rear for us, so many
>>>> >>> professors and doctors want their caller ID masked from everyone
>>>> >>> (and of course, all masked as something different)
>>>> >>>
>>>> >>> On 4/4/06, Ed Leatherman <ealeatherman at gmail.com> wrote:This is
>>>> >>> something I wish was easier to do with callmanager. Here is what we
>>>> >>> do..
>>>> >>>>
>>>> >>>> -Make a new partition, we call it MaskCLIDAs<number>
>>>> >>>> -Make a new Calling search space, we call it Device_MaskAs<number>
>>>> >>>> -Put the MaskCLIDAs<Number> partition as the first entry in the new
>>>>
>>>> >>>> CSS, and then put any additional partitions you would need to call
>>>> >>>> (outbound partitions etc)
>>>> >>>> -Make a Translation pattern that will match all your internal
>>>> >>>> extensions, and use it to modify the calling party number to
>>>> >>>> whatever you like. Make sure you set the new calling search space
>>>> >>>> as something that can call your internal numbers. The new
>>>> >>>> translation pattern should be in your new partition.
>>>> >>>> -Configure the phone with the new CSS
>>>> >>>>
>>>> >>>> basically you want interal callers to hit that new translation
>>>> >>>> pattern when they call another internal number, so that it modifies
>>>>
>>>> >>>> the calling party number and then proceeds as normal with the call.
>>>> >>>> Otherwise it places outside calls as normal.
>>>> >>>>
>>>> >>>> Does that help? As you can imagine if you do this alot, you get
>>>> >>>> alot of partition/CSS/translation pattern clutter on callmanager.
>>>> >>>>
>>>> >>>> One thing to be careful of is to make sure your masked phones can
>>>> >>>> still call everything they need to (call pickup groups tripped us
>>>> >>>> up on this) with the new CSS. And also make sure they still cannot
>>>> >>>> call things they shouldnt :)
>>>> >>>>
>>>> >>>> On 4/4/06, Grullon, David < David.Grullon at co.galveston.tx.us>
>>>> wrote:
>>>> >>>>>
>>>> >>>>> I am trying to mask a number internally, extension to extension.
>>>> >>>>>
>>>> >>>>> Thanks
>>>> >>>>> Dave
>>>> >>>>>
>>>>
>>>
>> Ed Leatherman
>> Assistant Director, Voice Services
>> West Virginia University
>> Telecommunications and Network Operations
>>
>> ------------------------------
>>
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>>
>>
>
>
> --
> Ed Leatherman
> Assistant Director, Voice Services
> West Virginia University
> Telecommunications and Network Operations
>

-- 
Ed Leatherman
Assistant Director, Voice Services
West Virginia University
Telecommunications and Network Operations
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