Incoming call on GXP2135 interrupts phone book or dial operation


Hi All,
My clients office is 15-20 staff at any time and all phones are in an ring group, anyone free will answer. As the topic states, when a staff member is searching the phone book to dial out, an in-coming call interrupts the users search/dial operation. Can this be disabled?

I have tried the “Onhook Dial Barging” to “Disabled”, but it still happens .




Work only if you try call not when checking phonebook.
Try start call at first (speaker) then from target go to phonebook, i think this should not be stopped.