> For the complete documentation index, see [llms.txt](https://v5cookbook.denovolab.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v5cookbook.denovolab.com/troubleshoot/enforce-e164-format-for-vendor-trunk.md).

# Enforce E164 Format for Vendor Trunk

In this article, I will talk about how you can enforce E164 formatted DNIS be sent to your Egress Vendor. Assuming this Vendor is for US traffic and US DNIS have the following format:

* 11 digits with +
* 10 digits without +

You can setup Action rules as follows:

![](/files/-MYWOelBPorV7m5e74N1)