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Replacing set Call Manager

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Scparks

Scparks

Technical User
Jan 16, 2013
45
US
I am trying to replace a defective 7841 set which only has one line on it with a 7821 but want to keep the same number. Do I have to delete the 7841 set first and then just rebuild the 7821 with the existing number? Any help would be appreciated.
 
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You can build the 7821 in the system at the same time if you want.

Certifications:
A+
Network+
CCENT
CCNA Voice
CCNP Voice
 
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