You can technically work around this today with a separate custom field for the extension, but that doesn't really solve the problem — you still have to remember or manually look up the extension every time.

What's actually missing is support for the ";" wait character directly in the phone field itself (e.g. +14045556789;1200). That's standard dialer behavior: it connects the main number, pauses, then lets you tap once to send the extension instead of having to recall or type it. Right now there's no way to store that in HighLevel at all — a custom field just isn't the same thing.

Native support for ";" in the phone field would actually solve this, no workaround needed.

Main feedback thread is : https://ideas.gohighlevel.com/contacts/p/phone-number-extensions, you should put your vote there for more impact!

Our B2B clients constantly have extensions too. The custom field thing is annoying because it doesn't integrate with the dialer properly.

Same issue here. Most of our B2B clients have extensions and the custom field workaround breaks the flow when dialing from GHL.

We definitely need this. Running into this issue right now!

This is obnoxious to have to use a custom field if you have multiple phone numbers that you place in a specific order then need to leave phone numbers for a separate field.