| Name | Type | Description | Attributes |
|---|---|---|---|
| isdnGatewayNumber | string | An ISDN gateway phone number for the site. This field is just for your reference. It is not used by the software to process calls. | Mandatory |
| e164Start | string | The beginning of the range of E.164 extensions associated with the site. This can only contain the digits 0-9 | Mandatory |
| e164End | string | The end of the range of E.164 extensions associated with the site. This can only contain the digits 0-9 | Mandatory |