Dealing with Firewalls and VoIP with 3CX
Firewalls & VoIP
Setup External Extensions on 3CX using Direct SIP
How to setup external extensions using direct SIP
3CX with Grandstream Video Phones
Written by Matthew Hanson, 888VoipStore Support Engineer Recently, we had a client looking to start a business reselling VoIP video phones and providing accompanying service. He planned to provide a hosted solution, with the ability to install various VoIP video phones throughout businesses in his area. Doing so would allow these video phones to not only work with each other, but also in conjunction with video phones around the country. With business model in hand, our client trusted 888VoipStore to...