# 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:

![](https://2160858555-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MYRPW5mw1EmjxhpuA4p%2F-MYWHHcJSVJ-9F7LXCtk%2F-MYWOelBPorV7m5e74N1%2Fimage.png?alt=media\&token=e465530c-2fa6-482f-ab7b-57c2091d4cdd)