> For the complete documentation index, see [llms.txt](https://docs.didforsale.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.didforsale.com/sip-trunking/configuration-of-phone-numbers/sip-to-sip-account.md).

# Configure SIP to SIP Account

Login in your Account Portal, Click on **Phone Numbers**. Select the number you want to configure to set up call forwarding.

![List of Phone Numbers](/files/-LWY3jIKOoSLSczj9UO5)

Click on any number and select **"Edit Configuration"** to go to configuration screen. 

![](/files/-LY8MStjJPHlH1ZcE-nF)

Select **SIP -> SIP** **Account** and select your SIP Account from the list.

Click on **Save**. 

![](/files/-LY8PA_uwC4Pf4rAfeuk)

This is how the Phone Number will appear after applying the configuration. Check the image below.

![](/files/-LY8QD-jT67Qg4oiS3X4)

There are lot or advanced options, Click on the "?" to see the description for each option.