do internal extensions use simultaneous calls?

[Sprockwell]

Do calls between internal extensions take up simultaneous call seats?

 

[craigreilly]

Yes it counts as a call.
https://www.3cx.com/ordering/pricing/faq/

 

[Sprockwell]

what is the end user experience when simultaneous call limit is reached?

 

[leejor]

The next call attempt will reach a recording stating that the limit has been reached.

 

[Saqqara]

You can also setup an email to inform the admin email account the license limit has been reached