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displayed caller id

greetings,

Where would I check to see what information is being sent for the caller ID. My guess is that it is in the phone/line settings, correct? Is there someplace else that could provide this info.

I have a couple of users that are insisting that when they make an external call, the receiving end is getting the wrong information as who the call is coming from.

CCM 4.1(3)sr3c

Thanks in advance.

2 REPLIES
Silver

Re: displayed caller id

What type of PSTN service are they using to dial out? PRI, POTS?

Re: displayed caller id

The first thing that we need to check is what kind of gateway you have

for outgoing calls: H.323 or MGCP.

Lets suppose you are using MGCP. If so, all caller id configuration is

made in the callmanager server.

In callmanager, caller ID for DID phone numbers and non-DID phone numbers

are configured in the same way.

Please see below the places in callmanager administration where you can

configure caller ID:

1) "Directory Number Configuration" page.

Scroll down to "External Phone Number Mask". Enter here the number that you want

to send to the PSTN. Then click on "update" at the top of the page. You have to

repeat this same procedure for the other extensions configured for this IP Phone

(if you want to send those numbers also to the PSTN).

2) "Route Pattern Configuration" page.

Locate the route pattern that you are using for doing calls to the PSTN.

Scroll down to the "Calling Party Transformations" section.

-If you check the "Use Calling Party's External Phone Number Mask" checkbox,

you will use the number that you configured in the "Directory Number

Configuration" page as caller ID.

-If you uncheck that checkbox, then you can configure the "Calling Party Transform

Mask". Just enter here a number like, as an example, 978858xxxx (callmanager will

fill out the xxxx with phone?s 4-digit extension).

3) "Route List Detail Configuration" page.

Go to the "Calling Party Transformations" section.

"Use Calling Party's External Phone Number Mask" > if you set it to "on", you

will use the number that you configured in the "Directory Number Configuration"

page as caller ID. If you set it to "off", then you need to configure the "Calling

Party Transform Mask" (next line on this same page). The setting that you use here

will override the settings that you configured in the "Route Pattern Configuration"

page.

You configure the "Calling Party Transform Mask" here in the same way as explained

for the "Route Pattern Configuration" page.

4) In the GW configuration page, under 'Caller ID DN'

GW config (4) overrides 3, 2 and 1.

Route List (3) overrides 2 and 1

Route Pattern (2) overrides only the 1

You can take a debug isdn q931 on the GW to see what are you sending, because I have seen cases were we are sending the correct caller ID but the Telco change it.

HTH

//Jorge

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