External Phone Number Mask and Telco issue.

[allen.hilton1]

Hello,

I have requested for our Telco to assist with setting up our PRI's to utilize the External Phone Number Mask so we can send this as our CPN. At first I recieved the answer that I wanted to hear in that they would set up the PRI's to send CPN instead of Main Billing Number and setup a call screening table with all of our DID numbers. If the CPN was not in the screening table then they would send the Main Billing Number.

After I was given this answer, I was then told this could not be done because our PRI's are on a 5ESS switch.

Can anyone help me determine which one of these answers is correct; can this be done on a 5ESS PRI or not? Is anyone doing this currently with their Telco using a 5ESS PRI and succesfully sending the number mask as their CPN?

Thanks in advance for any feedback.

[Manish Gogna]

Hi Allen,

There is no available documentation stating this limitation with 5ESS explicitly. The following blog infact suggests that it coulb be possible with 5ESS

http://blog.globalknowledge.com/technology/unified-communications/concepts-in-psali/

You many want to check with TAC if they had some cases with similar issue being reported with 5ESS since caller id issues are so common.

Manish

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