IP PBX
Compare 1 IP PBX parts from manufacturers including Grandstream, with live price tracking and alerts.
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Filter in catalog →Frequently asked questions
What is the user capacity of the Grandstream UCM6304?
The Grandstream UCM6304 supports up to 2000 users.
How many FXO and FXS ports does the UCM6304 have?
The UCM6304 features 4 FXO and 4 FXS ports.