[asterisk-users] Prevent Asterisk from setting CALLERID(name) or unsetting CALLERID(name)

[Benoit Panizzon]

Hi all

We use a Genband Safari C3 Softswitch and have an attached Asterisk for some 
special funktions like SPOT Filtering.

Now then a call comes from PSTN to a SIP subscriber, the invite looks like:

From: <sip:
+4179*******@157.161.10.190:5060;user=phone>;tag=7f33ff47+1+68530003+e1367280

If the device is a Snom M9 (or many others) in the absence of a CALLERID(name) 
the CALLERID(num) is displayed.

If the same invite reaches the Asterisk server. Strangely the CALLERID(name) 
is set to the same Value as the CALLERID(num).

Now the CALLERID(num) is being changed (localized) during processing of the 
call on the asterisk server.

If now the call get's connected to a SIP customer.

From: "+4179*******" <sip:079*******@157.161.10.37>;tag=as40775516

So a SIP customer get's a non localized number on his display (which is 
CALLERID(name)).

Is there a way to get asterisk not to invent a CALLERID(name) if there is 
none?

Id did try to set ${CALLERID(name)=""} but that resulted in From: "" <sip...> 
and the displaying of this empty string on the subscribers phone.

Is there a way to completely remove the CALLERID(name) like 
(UNSET({CALLERID(name))?

Kind regards

Benoit Panizzon
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