Mail Service
The Mail Service is a mailbox where the voicemail left will be received.
The username is the 6 digit Internet Number (SIP Number) located in the Exchange Service followed by @quuvoo4ohcequuox.0.88.io, e.g: 123456@quuvoo4ohcequuox.0.88.io.
The password is the same 12 character password used by the Webphone