Calling party name is being exposed in SIP Headers

[simon hester]

Hi 

I have been looking at issues we have seen with the calling party name being exposed in the SIP headers. I have only seen the issue when making calls between CUCM clusters over the PSTN. The calling party name is displayed in Jabber on the called party side

When calling party A calls called party B - we see the name of called party A this also works in reverse. 

The CUCM clusters are not connected and the calls route as follows. 

Calling cluster A  CUCM >> Cube 8200 >> SIP Provider >> PSTN >> SIP provider >> Cube 4321 >> Called cluster CUCM

As I understand things the SIP header is including the name down to the following CUCM config 

We need the PAI set as this is needed for 999 emergency systems as they use this to ID who has called. 

How is it best to remove the name in the SIP header? I had hoped there would be some setting in CUCM. But struggling to find one.

I can apply a SIP profile to remove the name part on the cubes but would rather it was done in CUCM. 

Thanks in advance for any help.  

[Nithin Eluvathingal · Accepted solution]

One option is to use a SIP profile on the CUBE. Alternatively, you can create a normalization script on the CUCM and apply it to the trunk towards the CUBE

[Maren Mahoney · Accepted solution]

In CUCM you could create a normalization script to modify the PAI (or other fields) and could even limit it to 999 calls only. I am not expert in writing the LUA script for normalization, but I know this can be done. Hopefully one of the other smart folks on this site can provide additional help.

Maren

[simon hester]

Thanks for the comments. Having never done the normalisation scripts I suspect I may just deal with it on the Cube as i know how to configure the SIP profiles so easier for me to do that.

Thanks again