> For the complete documentation index, see [llms.txt](https://docs.livecaller.io/livecaller/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.livecaller.io/livecaller/services/business-phone-pbx/numbers.md).

# Numbers

<figure><img src="/files/YLUEpST2TlLnJWCFHAgO" alt=""><figcaption></figcaption></figure>

The **phone number** is your organization’s contact number provided by your VoIP provider. The LiveCaller business phone platform is compatible with all VoIP providers, both local (Georgia) and international, that support **SIP integration**.

Your VoIP provider must provide the following parameters:

* **SIP User ID / Username:** This is an alphanumeric ID, e.g., `Q5FpVY7` or `2123123`
* **SIP Password:** The password provided by your VoIP provider, e.g., `LjNbZMaXXQAm`
* **SIP Server / Hostname:** The server IP or domain of the provider, e.g., `80.80.80.80` or `sip.myprovider.ge`

**Note:** Do **not share** these credentials with any third party.

Enter the provided parameters so that our system can connect to your VoIP provider and allow you to receive calls.