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Caller ID problem!!

Hi all,

We have 2 callmanagers with centrailized call processing and 4 3640 with T1/PRI connect to telco in four different offices.

I test with T1 PRI last night, it will show my cell phone number on IP Phone, but it wont show Phone number on my cell phone if i call from IP Phone. I ensure that our Telco will send digits.

I enable "Presentation Bit" -->Allowed and "Display IE Delievery" -->click

Aslo I have debug ISDN q931, so u guys can help me out here.

Router#debug isdn q931

ISDN Q931 packets debugging is on


2d03h: ISDN Se1/0:23: TX -> SETUP pd = 8 callref = 0x0025

2d03h: Bearer Capability i = 0x8090A2

2d03h: Channel ID i = 0xA98397

2d03h: Calling Party Number i = 0x0081, '7522', Plan:Unknown, Type:Unkno


2d03h: Called Party Number i = 0xA1, '19171235467', Plan:ISDN, Type:Nati


2d03h: ISDN Se1/0:23: RX <- CALL_PROC pd = 8 callref = 0x8025

2d03h: Channel ID i = 0xA98397

2d03h: ISDN Se1/0:23: RX <- PROGRESS pd = 8 callref = 0x8025

2d03h: Progress Ind i = 0x8288 - In-band info or appropriate now availab


2d03h: ISDN Se1/0:23: TX -> DISCONNECT pd = 8 callref = 0x0025

2d03h: Cause i = 0x8090 - Normal call clearing

2d03h: ISDN Se1/0:23: RX <- RELEASE pd = 8 callref = 0x8025

2d03h: ISDN Se1/0:23: TX -> RELEASE_COMP pd = 8 callref = 0x0025

Thanks a millions


Community Member

Re: Caller ID problem!!


We had a similar problem. In our case it turned out to be the service provider had not screened our phones for caller ID. Refer to this post for another solution that was provided for us.


Community Member

Re: Caller ID problem!!

Hi Ron,

I follow your instruction, it is work. However, I call my cell, only get 4 digits.

We have 2 callmanager(primary and secondary), use 4 digits dialing plan.

The phone I got from cell phone is the one I assign to IP PHone (DN number).

Also, I use 3640 T1/PRI.

How can I get 10 digits. For example: IP Phone(DN:5000), I want my cell recieve (212 234-5000) something like that.

Is there anyway to accomplish this problem.


Community Member

Re: Caller ID problem!!

You could try and check your route patterns and add the party transform mask there to append the numbers you want. Not sure if this is what you are looking for.

Community Member

Re: Caller ID problem!!

"Presentation Bit" is for inbound. If you would like the PSTN user to see the DN from the IP phone you need to code it in the "External Phone Number Mask" on the IP phone's line setting page

Community Member

Re: Caller ID problem!!

You can use external phone number mask, but I have found it easier to set the calling party mask on the route pattern or route group. You also have to check with your provider to make sure your numbers are enabled for caller ID. I had a situation where I would hand out the individual DID and get no caller id, when I changed the mask to the main number, it worked fine. Only the main number was enabled for Caller ID.


Re: Caller ID problem!!

Another approach to get your 10 digit Caller ID sent out would be to set on the gateway the parameter "Caller ID DN" to something like this: 30776XXXXX assuming your using five digit dialing.

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