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Re: caller Id dropped across IP trunks
change public-unknown-numbering x ... where x = your extension length. Fields are as follows:
Ext Len: Extension Length (i.e. 4)
Ext Code: A matching extension code. Similiar to ARS matching. i.e. 4 would match 4xxx, 43 would match 43xx, etc.
Trk Grp(s): Trunk Group. Blank = All trunk groups.
CPN Prefix: CPN Prefix: In the case of DID numbers here is where you would put the NPA-NXX ... i.e. 469698.
Total CPN Len: In North America this is usually 10.
So, if you have a total cpn len of 10 and an ext len of 4 with 469698 as the CPN prefix, then when extension 4000 makes a call the Caller ID is output as 4696984000 because the system appends the extension number onto the end of the CPN prefix for a total caller ID.
Now, in your case you probably only want the 4-digit extension number output. In that case, leave the CPN Prefix blank and make both the Total CPN Length and the Ext Len 4 and you should be good to go.
If you want the station name to go as well you must do 2 things:
1) In "change system-parameters features" set USNI Calling Name for Outgoing Calls to Yes
2) In the trunk-group set Send Calling Name to Yes.
regs,
.al.
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