[cisco-voip] internal numbers ID masking

Ed Leatherman ealeatherman at gmail.com
Thu Sep 11 15:09:27 EDT 2008


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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