SIP trunking is a type of protocol used for VoIP, although the relationship between the two has often been confused. In this article, we’ll take a close look at what exactly SIP is, what SIP trunks ...

Just what is SIP trunking? Let’s take it one part at a time. SIP refers to Session Initiation Protocol, the standard developed in the 1990s by the Internet Engineering Task Force that is used to set ...

The merits of SIP trunking have been talked about for years and now it looks like businesses are aggressively adopting the technology, lured by striking cost savings and the promise of new ...

I’m trying to get info from a supplier and they are insistent that a trunk is a 1 to 1 with a call. Now I am 99.999% sure he's wrong, but before I tell him so I wanted to make sure someone who knows ...

Also included are well-researched appendices that show prices for WAN connections, SLA parameters, a model for private SIP trunks, and other valuable information like sample international calling ...

Are SIP trunks as reliable as an ISDN PRI T1? I’m asked this question a lot, so I thought it’d be a great blog topic. I don’t think you are as concerned with this as the amber lights in the server ...

“SIP trunks”, the newer way to deliver low-cost voice, looks set to take off as a broadband-based service for businesses in 2010 to 2011. There are still some serious barriers on the way but new ...

SAN FRANCISCO, CA--(Marketwired - Apr 3, 2014) - SIP trunking is important for companies that are interested in upgrading their phone service but not interested in purchasing an entire new system and ...

So our phone system people are trying to setup a SIP trunk on our Mitel 3300 unit. I open up firewall ports and setup 1:1 NAT for the PBX's IP, everything looks like it should be OK. They are telling ...

TDM trunks have long served to connect corporate PBXs to the public switched telephone network (PSTN). But with more companies moving to VoIP, SIP trunking has become an increasingly popular ...