Why this is the default endpoint
Waiting on a courier is a poor reason for a phone system not to work. The web phone means the order of operations is reversed: the service works first, and handsets arrive into a system that is already running.
A new line can make and take calls from a browser tab the moment it is created. Desk phones are an addition, not a prerequisite, which is the difference between answering calls on Monday and answering them whenever the courier turns up.
What the call does
Waiting on a courier is a poor reason for a phone system not to work. The web phone means the order of operations is reversed: the service works first, and handsets arrive into a system that is already running.
Everything a desk phone does, without the desk.
Browser calling is only as good as the connection underneath it. The call quality dashboard exists because we would rather show you jitter and packet loss on a specific call than tell you the service is fine.
Drawn, not filmed
The browser phone is live the moment the line exists. The handset is a later addition.
Most people never open the second column. It is one click away rather than spread across the first.
On every plan
This is included whichever plan you are on, with no add-on and no module to enable. Plans differ by how calls are distributed and how long the history is kept.