A SIP trunk can be used by someone with 2 or 3 phones. There is no size requirement. It simply means you have a PBX system that needs SIP phone service to make and accept calls.

Interoperability with Skype for SIP will allow SMBs and enterprises to reap tremendous productivity gains and cost savings with the GXE502x IP PBX and a host of other Grandstream SIP-based ...

I'm working to help my cousin set up VoIP in her home. She's already got an account with VOIP.MS . So far, the reviews on the most common VoIP adapters, the OBI200/202 and the Grandstream HT701 ...

BOSTON--(BUSINESS WIRE)--Grandstream, connecting the world with award-winning SIP unified communication solutions since 2002, today announced the release of a new IP Audio Door System. The GDS3705 ...

SLIC = Subscriber Line Interface Card (not Module).[1] “Grandstream SIP box did the trick. These are all-in-one devices that implement a SIP client with a physical connection, and older ones ...

Businesses can save money by using Skype on Grandstream's IP PBX and gateways Grandstream Networks, the leading manufacturer of IP voice/video telephony and video surveillance solutions, and Skype ...