info command

GIVEN I am the admin of a channel called #foo

• WHEN I send the message "INFO" (case-insensitive) to the channel's phone number
• THEN I will receive a message that reads:

  You are an admin of the channel "#foo":
  
  - phone number: +155555555
  - subscribers: 100
  - admins: +1-222-222-2222, +1-333-333-3333
  

GIVEN I am a subscriber to a channel called #foo:

• WHEN I send the message "INFO" (case insensitive) to the channel's phone number
• THEN I will receive a message from the channel's phone number that reads:

  You are subscribed to the channel #foo:
  
  - phone number: +155555555
  - subscribers: 100
  - admins: 2

Optimizations

• cache response