Add phones to blacklist

@param callback
@param phones
@param comment
function smsAddPhonesToBlacklist(callback, phones, comment){
    if ((phones === undefined) || (!phones.length)) {
        return callback(returnError("Empty phones"));
    }
    var data = {
        'phones': JSON.stringify(phones),
        'description': comment
    }

    sendRequest('sms/black_list', 'POST', data, true, callback);
}