More SIP Trunk Issues
If you want to read an absolutely brilliant discussion of a key technical/security/policy issue around SIP in general and SIP trunking in particular, check out this VOIPSA blog post by Dan York.
Dan does a terrific job starting with what appeared to be a simple hack of Caller ID in SIP, then explaining technically what's going on, and then illustrating the larger issues that this particular exploit reveals. The bottom line is that, in a world of SIP trunks, there are new issues about where trust boundaries start and end, and which side of that demarc an end customer ought to be on.
In the old days, regulations made the demarc point very clear, and everyone knew on which side of it they stood, and what that implied about the services they would and wouldn't receive, and the measures they needed to take on their own behalf.
Today, it's a completely different story, and so in addition to worrying about availability and interoperability when it comes to SIP trunks, you'll also need to know the kind of details that Dan writes about. Definitely go read the whole post.
This is a public forum. CMP Media and its affiliates are not responsible for and do not control what is posted herein. CMP Media makes no warranties or guarantees concerning any advice dispensed by its staff members or readers.
Community standards in this comment area do not permit hate language, excessive profanity, or other patently offensive language. Please be aware that all information posted to this comment area becomes the property of CMP Media LLC and may be edited and republished in print or electronic format as outlined in CMP Media's Terms of Service.
Important Note: This comment area is NOT intended for commercial messages or solicitations of business.
