Archive for October, 2012

AstriCon 2012: Digium at the Crossroads

AstriCon 2012: Digium at the Crossroads

Wednesday, October 31, 2012

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We’ve just returned from AstriCon 2012 in Atlanta. What a show! Not only were the exhibits plentiful and eye-opening for the breadth of coverage that Asterisk® has garnered, but the dozens of sessions on virtually every facet of Asterisk were first-class. If you haven’t been, I would encourage you to clear your calendar for a few days next October. Mark Spencer was a proud papa as, indeed, he should be. There’s been a good bit of turnover at Digium® in… Read More ›

Practicing Safe SIP: Adding SIP URI Connectivity with a Zero Internet Footprint

Practicing Safe SIP: Adding SIP URI Connectivity with a Zero Internet Footprint

Thursday, October 11, 2012

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PBX in a Flashâ„¢ has a long (safe) history in the VoIP community, and the major reason is that we constantly preach never directly exposing any ports on your Asterisk® server to the Internet without implementing a WhiteList of safe IP addresses. This Zero Internet Footprintâ„¢ design keeps everybody out except a trusted, defined group on your WhiteList. For everyone else, they never see your server. So how do you receive calls? You do it with phone numbers (DIDs) tied… Read More ›

Sleep Like a Baby: 20 Failsafe Tips to Enhance Asterisk PBX Security

Sleep Like a Baby: 20 Failsafe Tips to Enhance Asterisk PBX Security

Monday, October 1, 2012

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We often tell the tale of the early Asterisk@Home days when almost every server was configured with no firewall, unlimited web access, and a 201 extension with a password of either 201 or 1234. What could possibly go wrong? Remember this Monday morning newspaper headline? “Small business gets $120,000 phone bill after hackers attack VoIP phone.” News.com.au ran this story back in 2009: “Criminals hacked into an Internet phone system and used it to make 11,000 international calls in just… Read More ›