SIP ALG, allowguest=no


Hello I just read this article about an Asterisk server that got hacked to
make free international calls through an ITSP: I have a couple of questions: 1. Am I correct in understanding that SIP ALG on a router makes it
easier to host an Asterisk server on a private LAN behind a NAT router
(no need to map ports for RTP + outgoing packets can be sent directly
to the remote SIP client instead of going through the Asterisk server
to rewrite the RTP port numbers)? 2.…

Asterisk Users 3.8 years ago 0 Answers

Sun CEO explicitly endorsed Java's use in Android


Hello people, I would like to share this article as I found it of really high relevance to everyone that would like to use Java as a programming language: "If you believe Oracle’s patent lawsuits against Google for its use of Java in Android, Google has stolen not just patented ideas but directly copied Java code. In short, Google is a red-handed thief and should pay Oracle over a billion in damages. There’s just one little problem with this portrayal of Google as an intellectual property (IP) bandit. When Android first came out, Sun CEO Jonathan Schwartz, then Java’s owner,…

Off Topic News 4.3 years ago 0 Answers

Connect intercom to Asterisk?


Hello I just read this article about a kid in England who built a box with a
3G SIM card: When someone rings your intercom, the box will call your cellphone so
you can answer just like you were home. I don't know anything about electronics and would like to have
something similar by connecting the intercom end in my appartment to a
PC running Asterisk that will dial a phone number through SIP. Does someone know if something like that is available ready to use
(Arduino, etc.)? Thank you.

Asterisk Users 4.4 years ago 3 Answers

How to create distortion, echo, and chopping sound in a SIP trunk?


In article ,
Bruce B wrote:
> How can I introduce some distortion, echo, chopping sound and all other bad
> quality things that can happen to a SIP trunk? I have plenty of bandwidth
> and crisp clear lines so the only thing that I can think of is to limit
> bandwidth but even that requires quite some scripting work.
> Is there any easy way to simulate a distorted SIP line temporarily for
> testing?
> I am appreciate experienced…

Asterisk Users 4.5 years ago 3 Answers

CDR Mysql adaptive Colum


Hello folks, i installed asterisk 1.8 from repo: And Looked at this article about CDR in mysl. I installed asterisk-mysql pacakge from debian repo. The cdr in mysql is working, but i can not get cdr adaptive colums are not,
i use this in my extension.conf exten => s,1,set(CDR(teste)=${CHANNEL(audioreadformat)}) And is not working, i thought the only diference it i would need the colum
teste in my cdr table right ? I tryied a lot of combinations of exten => Does anyone have any ideia how is the right way ? Or…

Asterisk Users 4.6 years ago 4 Answers