How many external numbers can I forward calls from an Extension?

I don't know how many (there is no documentation, and the service web just lets you click to add more number), but there must be some limit. However, I don't think that it is 5 numbers. If you remove the 2 numbers which got the forwarded call, did the other 2 or 3 numbers got ringing?

Please refer to the article here: https://support.ringcentral.com/article/Calls-Not-Forwarding-RingCentral-to-Third-party-Phone-Numbers.html

You should be able to forward calls to more than 3 numbers (do not know the exact limit) as well via Call Forwarding and answering rule settings.

If you still have issues , please reach out to RingCentral Tech Support team for these queries : https://support.ringcentral.com

Thank you both. Will test via removal of the two that worked. Will also play with the number of rings for each remote number.