asterisk users - Apr 2005 - Interesting Cisco 7960 issue, the phone picks up without me!

Hello list,

I have received great help with other questions, so here goes another 
one.  I have configured * for SIP access to my broadvoice account and 
incoming and outgoing calling work well.  Now I would like to change 
from the sip softphone that I was testing with to a Cisco 7960G and 7920 
that I picked up on eBay.

I made some changes to my incoming dialplan and skinny.conf to support 
the 7960, and everything appears to be working well, calling in both 
directions is working.  However I realized that when I changed the 
ringtone on the phone that * must have detected the change also, since I 
heard that when I called the extension?!?!  Wait that's not right, my 
phone has picked up the line when it started ringing and I was hearing 
the phone ring through the speakerphone!  THAT is most definitely NOT a 
good idea!  Any thoughts on why this is?

Here is what the console shows us:

Connected to Asterisk CVS-v1-0-04/08/05-16:59:29 currently running on 
asterisk (pid = 3250)
ectionsk*CLI>
Verbosity was 6 and is now 7
asterisk*CLI>
asterisk*CLI>
    -- Executing Answer("SIP/9251234567-e68b", "") in new
stack
    -- Executing Wait("SIP/9251234567-e68b", "1") in new
stack
    -- Executing Dial("SIP/9251234567-e68b", 
"Skinny/100@craig_office|25") in new stack
Found device: craig_office
    -- skinny_request(100@craig_office)
    -- Skinny cw: 0, dnd: 0, so: 0, sno: 0
    -- skinny_call(Skinny/100@craig_office-2)
    -- Called 100@craig_office
    -- Skinny/100@craig_office-2 is ringing
Recieved Open Recieve Channel Ack
skinny_hangup(Skinny/100@craig_office-2) on 100@craig_office
  == Spawn extension (from-broadvoice, 100, 3) exited non-zero on 
'SIP/9251234567-e68b'
asterisk*CLI>

Here is a snippet of my skinny.conf

; Config for my office 7960G
[craig_office]
device=SEPxxREMOVEDxx
nat=1
callerid="Craig Simon" <925-123-4567>
mailbox=100
context=from-broadvoice
linelabel="My company" ; Displays next to the line button on
7940's and
7960s
line => 100
callwaiting=1
transfer=1
threewaycalling=1

And here is my dialplan for incoming calls:

[from-broadvoice]

exten => 100,1,Answer
exten => 100,2,Wait(1)
exten => 100,3,Dial(Skinny/100@craig_office,25)
exten => 100,4,VoiceMail(u${EXTEN})
exten => 100,5,Hangup

Not sure if I can provide any additional information to help unravel 
this one. 

Thanks again in advance.
Craig

Anyone with experience on the Cisco 7940G, got the unit on ebay for a great
price, but can figure out the password, tried the factory reset, can figura
that either, any help will be appreciated, I trying to enter the network
config to make it work with *... Thanks