Optional
Which channel to show it on, for a line that carries more than one. Mirrors channel on SendMessageParams; omit to use the number's own default.
channel
There is no group form: typing inside a group isn't supported yet.
Number the indicator appears from, referenced flexibly: a phone-number id, one of your numbers in E.164, or a nickname.
Recipient phone number, E.164.
Which channel to show it on, for a line that carries more than one. Mirrors
channelon SendMessageParams; omit to use the number's own default.There is no group form: typing inside a group isn't supported yet.