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No.
Application keys
Description
6
Phone key
Displays the Phone screen.
8
Main menu
Displays the list of options, such as Features, Applications,
Settings, Network information, Administration, and About.
9
Contacts
Displays the entries in your Contacts list.
10
Recents
Displays call history list.
Connection jacks for J139 IP Phone
The following image illustrates the connection jacks that are present on the back panel of Avaya
J139 IP Phone.
The image schematically describes which device to connect to which jack.
Phone overview
December 2021
Using Avaya J139 SIP IP Phone in Open SIP
17