Normal Mode and Local Mode operation 163
After Virtual Office login, the Branch Office does not start the redirection
procedure to the Main Office for a logged in set immediately. The Main
Office can accept only an IP Phone 2004 compatible phone followinga
Branch Office redirection. If the redirected phone is not 2004 compatible
(such as 2007 or 1140), an Invalid Set Typemessage is displayed.
If the network is using CDP,the Network Ring Again (NRGN) feature does
not work for a Branch User in Local Mode. In the CDP environment, the
NRS database configures the main office as the endpoint forthe Branch
User DN. The Virtual Trunk obtains the endpoint of NRGN response
messages from the NRS. It sends admission requests to the NRS with
the Branch User DN. The NRS returns the address associated with the
destination DN. In this case, the returned address is that of the main office.
Users in a Branch Office cannot access their Personal Directory,Callers
List, or Recall List when in Local Mode, because the lists are stored on a
Signaling Server in the main office.
Licensing
A licensing feature for the Internet Telephonesin the Branch Office notifies
Branch Office administrators of a license violation; the extended use of
Branch Office Internet Telephonesin Local Mode.
Operation of IP Phones in Local Mode is meant to provide survivability
during conditions of network failure only. It is not intended for prolonged
operations. Therefore, a Licensing Period of 90 days is allowed for MG
1000B IP Phones to stay in Local Mode. When the Licensing Period expires,
a BUG0103 system message is written to the MG 1000BCall Ser verlog file.
The message is also printed on the teletype terminal (TTY). The IP Phones
are reset at the end of every call, and try to register with the main office.
When nine or fewer daysremain on the licensing feature, IP Phones display
a "Licensed days left: n" message to indicate how many days you can use
the MG 1000B IP Phone in Local Mode. This message also appears as a
banner when the technician logs into a maintenance terminal. After the
Licensing Period has expired, IP Phones in Local Mode display "Beyond
Licensed Period".
Licensing is based on a debit-and-credit system for the amount of time
the IP Phones have been registered to the main office or BranchOffice.
Credits are in two-hour units. After a software upgrade, 1080 initial credits,
equivalent to a 90-day period, are provided. The total credits are decreased
by one every time five or less IP Phones stay in Local Mode for two hours.
The total credits are increased by one for everytwo hours that five or less
IP Phones are registered with the main office. Total credits cannot exceed
1080 credits, or 90 days.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314 01.02 Standard
Release 5.0 20June 2007
Copyright© 2007, Nor tel Networks
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