[Asterisk-Users] Blank CIDName or CIDNum = "asterisk"

[Hugh L. Johnson]

I am using Sipura 841 phones and Asterisk CVS-v1-0-06/14/05.

Whenever a call comes in with blank CIDName or CIDNum the phone reports
the respective variable as "asterisk".

I can manually set the variables to whatever I want: CIDName
(alpha-numeric) & CIDNum (Numeric).  But if I try to make them blank, or
null, or maybe throw some alpha characters into CIDNum, they get
reported respectively as "asterisk".

Where is the phone getting "asterisk" from?