# ApiPeriodV2010PeriodAccountPeriodSipPeriodSipIpAccessControlListPeriodSipIpAddress ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **sid** | Option<**String**> | A 34 character string that uniquely identifies this resource. | [optional] **account_sid** | Option<**String**> | The unique id of the Account that is responsible for this resource. | [optional] **friendly_name** | Option<**String**> | A human readable descriptive text for this resource, up to 255 characters long. | [optional] **ip_address** | Option<**String**> | An IP address in dotted decimal notation from which you want to accept traffic. Any SIP requests from this IP address will be allowed by Twilio. IPv4 only supported today. | [optional] **cidr_prefix_length** | Option<**i32**> | An integer representing the length of the CIDR prefix to use with this IP address when accepting traffic. By default the entire IP address is used. | [optional][default to 0] **ip_access_control_list_sid** | Option<**String**> | The unique id of the IpAccessControlList resource that includes this resource. | [optional] **date_created** | Option<**String**> | The date that this resource was created, given as GMT in [RFC 2822](https://www.php.net/manual/en/class.datetime.php#datetime.constants.rfc2822) format. | [optional] **date_updated** | Option<**String**> | The date that this resource was last updated, given as GMT in [RFC 2822](https://www.php.net/manual/en/class.datetime.php#datetime.constants.rfc2822) format. | [optional] **uri** | Option<**String**> | The URI for this resource, relative to `https://api.twilio.com` | [optional] [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)