If you are using a SIP endpoint and you have configured your SIP phone to send some custom SIP headers starting with
X-PH-, Plivo will send these SIP headers with the HTTP Request.
You can set custom SIP headers while :
- Making an outbound call
- Dial element in XML - using the nested Number element
- Dial element in XML - using the nested User element
You need a SIP phone allowing custom SIP headers. In this case, SIP headers starting with
X-PH- will sent as HTTP Request.