Question: Support for Open-Source/Asterisk™ Community
Answer:

Grandstream's product portfolio is compatible and interoperable with open-source telephony and Asterisk™ - based solutions. Grandstream actively participates in SIPit events, including open-source platforms. Our products are interoperable with softswitches, softphones, and open-source based platforms. We welcome the opportunity to test our interoperability with leading providers and players in the open-source and Asterisk™ communities.
contact us to inquire about testing an open-source application