Thanks in advance.
The product has a capacity of 125.
I have never used GlobalMeet. I have used ReadyTalk and know they have an initial limit of 20 lines but provide options to add additional lines if needed.
It is probably best to confirm with a PGi representative for absolute latest information, but my understanding is that PGi GlobalMeet has a maximum participation of 125 people on a single web conference. That is what their pricing page shows as well:
I hope this helps.
Mine seems to limit us to 300 participants