*67 on Linksys SPA942 stays activated until phone reboots

*67 is staying activated on my linksys spa942 ip phone, until the phone is restarted.  All I am doing is dialing *67 + number, which works great but then the next call I make has the caller id blocked as well.  I tried to do *67 again to see if it turns off but it doesn't.  Any ideas?  I know it is the phone and not the carrier, because I can see that it continues to send anonymous in a sip trace on my Asterisk box.
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jkocklerAsked:
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feptiasConnect With a Mentor Commented:
I've just looked at SPA941 Admin Guide. The Linksys phone recognises a wide range of star codes (Linksys refer to them as "Vertical Service Activation Codes". *67 is "Block CID on ALL outbound calls". *66 will unblock the CID. *81 is "Block CID on the next outbound call".
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