Changes to List message channels

response property data/items/phoneNumber list-of-types was widened by adding types null to media type application/json of response 200

added the optional property data/items/callingEnabled to the response with the 200 status

added the required property data/items/sendNodeKind to the response with the 200 status

added the required property data/items/type to the response with the 200 status

added the required property data/items/username to the response with the 200 status