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 ...

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 ...

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 ...

Back in the days of wireline telephony, when all phone calls went over the Public Switched Telephony Network (PSTN), businesses would purchase “trunks” -dedicated lines or a bundle of circuits – from ...

The percentage of North American companies using SIP or Session Initiation Protocol trunking and traditional T-1s will just about equalize in two years, marking a dramatic shift in technology used for ...

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 ...