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New Member

Allowing extension to be seen for external call

I have a question for the forum is there away to make an external call to someone and they will be able to see your hold number instead of the PBX number. (Ex. 777-777-7777 is my extension what others are seeing is 777-777-7000 Company number) Is this a ISP issue or can I change it in the Call Manager 4.1

13 REPLIES
Hall of Fame Super Gold

Re: Allowing extension to be seen for external call

Do you have ISDN, and are you using MGCP or H.323 to the GW ?

New Member

Re: Allowing extension to be seen for external call

Yes we're using ISDN PRI's coming into the router with H323 gateway.

New Member

Re: Allowing extension to be seen for external call

Actually we're using ISDN PRI's coming into 2 routers one using H323 gateway and the other MGCP.

Hall of Fame Super Gold

Re: Allowing extension to be seen for external call

Ok, since at least the MGCP GW requires config in CM, you need to tweak "external phone number mask" in there so that the extension is presented with the number of digits that telco expects.

Unfortunately I'm unable to give you the details but someone else will.

Then you verify on the GW with "debug ISDN q931" and "term mon" when making a call.

New Member

Re: Allowing extension to be seen for external call

I tried it with my extension and it didn't work I am still showing the Company receptionist number i.e 777-777-7000 instead of my extension.

Hall of Fame Super Gold

Re: Allowing extension to be seen for external call

Please collect and post the debugs mentioned above.

Hall of Fame Super Red

Re: Allowing extension to be seen for external call

Hi Damon,

I'm sure Paolo is onto something here (he always is!) You should also take a moment to contact your Telco/Provider to see if all calls are being marked with the Corporate number. In many cases the Telco does charge extra $ for individual Name and Number display and their default may be what you are seeing.

Just in case,

Rob

New Member

Re: Allowing extension to be seen for external call

Thanks I will contact my ISP I thought I could override the default setting!!!!

Hall of Fame Super Gold

Re: Allowing extension to be seen for external call

But if you don't check your debug isdn q931 first, you cannot be sure that you are sending out the calling number in the proper format, including type/plan.

New Member

Re: Allowing extension to be seen for external call

Will do I will post the debugs!!!!

New Member

Re: Allowing extension to be seen for external call

Here is the debug

Hall of Fame Super Gold

Re: Allowing extension to be seen for external call

Hi,

you are sending out the full main number:

Calling Party Number i = 0x0181, '6782524000'

supposedly you should send the 4 digits extension only.

Please review you CM configuration so that four digits are sent out. Sorry, I can't help you, but others (and the manual) surely can.

New Member

Re: Allowing extension to be seen for external call

Thank You!!!!

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