Specifications

22 IP 705 Manual
The daisy chaining of IP 705 phones is not supported.
If two calls ring into the IP 705 at the same time and the user attempts
to answer the second call, the IP phone will automatically connect the
user to the first call.
If a call comes in while any phone menu or display (such as workgroup
display or Call Log) is being used, the phone will exit the menu and go
to the ring state.