> ## Documentation Index
> Fetch the complete documentation index at: https://telecomsxchange.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Add sell new did number

> This API endpoint allows authenticated sellers to sell a new DID/Phone number on the exchange.

Prerequisites:

* Point your voice DID(s) via SIP protocol to sip01.telecomsxchange.com
* Point your SMS DID(s) via SMPP v.5.x or v.3.x to smpp01.telecomsxchange.com
  port:2776