BuzzCode

No matter the type or style, W.I.L.L.O.W.I.S.P. Communicator Watches are all equipped with a vibration feature. This can help to alert agents when they receive a notifcation, but it can also be used as a language in itself. When a buzz is sent to a fellow agent, their watch vibrates. The longer the button is pressed, the longer the vibration persists.
Many operatives who work in the field with partners develop their own languages using the buzz feature. They assign words and phrases to different buzz patterns, lengths, and intervals.
Sometimes, the buzz feature is only used to give a go signal or to let one agent know the other is okay.
There are no universally recognized meanings for the buzz but many phrases and words have become somewhat standardized, being passed around informally from agent to agent, and even some being advised in classes as general best practice. Many agents are encouraged to come up with a code set with their partners.

Phonology

There is not much of a set structure to BuzzCode, but there can only be so many options. Some agents use morse code or other such similar patterns to spell out words using an entire letter system. Other operatives instead assign words or entire phrases to a set of buzzes. The haptic feedback given is sometimes not even used as a standard for certain words or phrases, but just the vibrations alone are set to mean something. For example, sometimes, agents communicate that they are observing a certain number of guards in a certain vacinity. Aforehand, they discussed that they would communicate the number via buzzes, so, when the agent receives seven buzzes, their partner is aware of the situation.