Category Archive: Telephone

May 26 2016

Read this before you pay $10 to Obihai for support

As you may be aware, I removed all of the Obihai-related articles on this blog in protest of Obihai’s decision to attempt to charge users an additional $10 support fee in order to get firmware updates, and I no longer recommend Obihai devices. However, if you previously purchased an Obihai and find that you need …

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Aug 01 2015

Install Elastix Unified Communication Server – Unixmen

Elastix is an unified communications server software that brings together IP PBX, email, IM, faxing and collaboration functionality. Source: Install Elastix Unified Communication Server – Unixmen

Feb 25 2015

How to set up an alternate SIP port (other than 5060) using Webmin

One problem that some VoIP users are experiencing these days is that they have trouble connecting to their home Asterisk, FreeSWITCH, YATE, or other software PBX server, but only when using certain ISP’s.  One suspicion is that certain ISP’s that offer their own VoIP or traditional landline service attempt to mess with packets using the …

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Jul 13 2013

Asterisk on a Raspberry Pi – which distribution is best?

Portions of this article were UPDATED July 20, 2016, mostly to include information about Raspivo. To the best of our knowledge there are five projects that will allow you to run a PBX on a Raspberry Pi. They are: Asterisk for Raspberry Pi a.k.a. RasPBX Raspivo – Xivo on Raspberry Pi (site is in French, …

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Apr 03 2013

Link: How to Install Asterisk 11 in RHEL/CentOS/Fedora and Ubuntu/Debian/Linux Mint

Asterisk is an Open Source software PBX (Private Branch Exchange), developed by Mark Specer of Digium. It allows you to make calls to one another which may have connected to other PSTN (Public Switched Telephone Network) and Voice over Internet Protocol (VoIP). Asterisk runs on Linux, BSD, MacOSX and others. Having built-in features like voicemail, …

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Aug 26 2012

Link to POSSIBLE method of porting a landline phone number to Google Voice for free (well, except for the $20 that Google Voice charges)

Google Voice will only allow you to port cell phone numbers to their service (don’t ask ME why — seems stupid, but that’s their rule) so if you want to port a landline number, you first have to temporarily port it to a cell phone provider, then from there port it to Google Voice. Most of …

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May 02 2012

Review of FreeSWITCH Cookbook by Anthony Minessale, Michael S Collins, Darren Schreiber, Raymond Chandler (Packt Publishing)

The FreeSWITCH Cookbook is the second book from Packt Publishing on the subject of FreeSWITCH, which in my opinion may someday soon be the “telephony software engine” that replaces Asterisk in popularity. I’ve previously reviewed the earlier book, FreeSWITCH 1.0.6, and this book builds on that one. If you know nothing at all about FreeSWITCH, …

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Nov 16 2010

Link: Interesting security technique for Asterisk and FreePBX users (may work with other SIP-based PBX’s also)

This article was originally posted in November, 2010. NOTE: For some reason WordPress absolutely hates it when I try to edit this post, and turns links and other things into piles of steaming poo.  If things don’t look right here please e-mail me or leave a comment and I’ll check it out.  WordPress, I KNOW …

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Oct 20 2010

Link: Using FreeSWITCH to add Google Voice to Asterisk

For those of you using Asterisk, Bill over at the PSU VoIP blog has come up with a way to interface Asterisk with Google Voice, by co-installing FreeSWITCH (which also supports Google Voice).  Turns out that Asterisk and FreeSWITCH can co-exist on the same server, though you do have to change the configuration a bit …

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Oct 20 2010

Link: Free SIP Calling with Google Voice (sans Gizmo5)

One of the more popular articles on this site is How to use Google Voice for free outgoing calls on an Asterisk/FreePBX system (the easy way), but that article assumes that you own (or have administrator access to) an Asterisk server.  What if you just want to have a softphone or regular phone with Google …

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