Asterisk is software that enables a server to act as an IP PBX system, VoIP gateway, conference server, and more.

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14
votes
2answers
924 views

Can anybody explain why to use Asterisk PBX rather than standard PBX from Matrix or Siemens [closed]

Can anybody explain why open-source Asterisk is favourable in comparison with a traditional PBX system from a vendor such as NEC/Syntel/Matrix or Siemens.
13
votes
2answers
640 views

not able to register sip user on red5server, using red5phone

I start the red5, and then i start red5phone i try to register sip user , details i provide are username = 999999 password = **** ip = asteriskserverip And I got -- Registering ...
9
votes
2answers
2k views

Can you please explain the difference between PBX and soft switch in less technical terms?

Asterisk is an open source PBX and FreeSWITCH is an open source soft switch. Source: http://www.freeswitch.org/node/117 Can you please explain the difference between PBX and soft switch in less ...
9
votes
2answers
629 views

Asterisk for Small Business - Where to Start?

I have been in IT for a long time now doing software development and some system/server administration, but all mostly software-related services. I would like to help set up a small business (~50 ...
7
votes
2answers
1k views

In a Asterisk PBX system, is hardware echo cancellation necessary?

I am pricing out hardware for 2 Asterisk (trixbox) systems, they are both smaller (one is a 4 line and the other is a 8 line, both analog TDM800p and TDM400p respectively) installs. And the one thing ...
7
votes
4answers
1k views

Asterisk running on VMware

Does anybody have experience or running Asterisk on VMware(?) - specifically the latest ESX...? I've got a proof of concept working but am reticent to roll it out without a bit more reassurance! I ...
7
votes
3answers
405 views

What are some potential uses of Asterisk (PBX) for a “power user”

So I read a lot of good things about Asterisk. I am not however looking to run a call center or small business setup. I am still interested what potential uses it has for me as a "power user" and ...
7
votes
2answers
2k views

asterisk outbound caller id

I'm trying to set the caller id number for an outbound call. My asterisk .call file looks like this: Channel: SIP/flowroute/1234567890 Context: test Extension: 1234567890 Priority: 1 Here's my ...
7
votes
4answers
1k views

Skype-SIP gateway

Does anyone know if you can setup a Skype-to-SIP gateway on your network? I tried Uplink, which works wonders, but only on Windows and with Skype on the same machine... It would be awesome if you ...
6
votes
4answers
505 views

VoIP PBX, custom build or appliance?

I'm looking for advices regarding VoIP products. I need to build an in-house VoIP PBX for one of my company's office, and while I'm fairly sure we will go with Asterisk (still leaving the door open to ...
6
votes
2answers
791 views

What are the means you use to monitor voice quality in your network?

What software/product do you use to monitor voice quality in your system? Do you use Asterisk manager API for making calls and recording audio? Do you have software to receive quality scores?
5
votes
4answers
2k views

Google Contacts on IP phones via asterisk PBX

I've skimmed google on this but haven't found anything too useful. Is there a way to use Google Contacts with a HardPhone supported by Asterisk PBX? Google contacts is exposed thru a MSExchange ...
5
votes
2answers
1k views

Ways to monitor SIP termination on an asterisk server

I have a nagios setup which ensures that SIP is responsive on my Asterisk server, that's straight forward. My question is, what kind of possibilities are there that the Asterisk server can actually ...
5
votes
4answers
746 views

Hardware needed for receiving and recording videocalls in Asterisk

I'm planning an Asterisk configuration that should record videocalls and then feed it to an application. From what I've researched, it seems like app_h234m is the way to go ...
5
votes
2answers
93 views

Trans-atlantic VOIP

We're a Canadian business on the east coast and will soon be opening up a new call centre in Australia. This new call centre will be handling our graveyard shift and will be overlapping with the ...
5
votes
2answers
2k views

Asterisk does not recognise DTMF tones from mobile phones

We have an Asterisk 1.8.7.0 (the Elastix derivative) switchboard. Every since a month ago, seemingly out of the blue, the switchboard does not recognise DTMF tones any more from mobile phones. ...
5
votes
1answer
705 views

Elastix(Asterisk) Slow to repsond on incoming PSTN line

I setup a PBX with asterisk and Elastix as a web GUI. I have all incoming calls set to ring to a ring group of our office personnel in a ringall format. The only issue is the time for Asterisk to ...
5
votes
5answers
195 views

Asterisk open source phone systems - determining which 800 phone number was used?

I have an Asterisk open source phone system. My business will have many toll free 800 phone numbers, they all go to the phone system. When a client calls us, is it possible to know which 800 phone ...
4
votes
3answers
1k views

How do I secure my Asterisk server?

Our asterisk server was compromised. some calls were made to Asia countries last weekend. Thought we have improved our network configuration, we still want to determine how the intrusion was done, we ...
4
votes
2answers
95 views

Using an extension to block a caller

I have a couple of SIP phones and use callcentric. I get a lot of junk calls. I'd like to implement the following feature and would like some suggestions on how to do this: Once I get a junk call, I ...
4
votes
1answer
1k views

Asterisk isn't playing recording attachted to IVR

I've setup an IVR to pickup up incoming calls to allow them to enter an extension or press one to be dropped into the ring group for our office. The only issue is Asterisk isn't playing the ...
4
votes
3answers
3k views

Asterisk: Dropping calls with an “ast_yyerror”

I'm having an intermittent issue where asterisk will play our greeting to the caller, and then drop the call instead of making our phones ring. I'm unable to reproduce the problem with any phones I ...
4
votes
3answers
4k views

Bringing people into an Asterisk conference call

I'm using Asterisk 1.4 and am trying to work out a way to bring people into a conference call. In the ideal scenario two people would be talking and one of them would push some keys, then a phone ...
4
votes
2answers
4k views

PSTN Trunk TDM400P Install on Asterisk / Trixbox

Hey All, I'm trying to get a TDM400P card with FXO module to connect to our PSTN line. The card is correctly detected by Linux: [trixbox1.localdomain asterisk]# lspci 00:09.0 ...
3
votes
6answers
1k views

What bandwidth would be required for 55 VOIP Lines And what type of Internet connection

In a call centre environment, what bandwidth would be required for 55 lines? This would be on SIP protocol, would we be best to use G729 codec as i know that our sip provider supports this? What type ...
3
votes
3answers
1k views

Registering SIP phone (X-Lite) to asterisk server (asteriskNow)

We currently have a school-project going in which we need to set up an PBX with Asterisk. Thus we have installed asteriskNow in a virtual environment (with virtualBox) on ubuntu 12.10. We tried the ...
3
votes
4answers
721 views

Asterisk Intrusion Prevention

Let me start of by saying that I'm a noob, and what I've figured out so far has only been by stumbling my way through it. I have Googled around and the solution may be out there already, but it was ...
3
votes
1answer
295 views

Asterisk / Trixbox Allow Inbound Caller to redial and bridge

I want a caller to be able to phone into asterisk from a mobile phone or a pay phone and then enter a special PIN and allow them to dial another number. This could allow for significant savings on ...
3
votes
2answers
1k views

How can I make Asterisk keep track of dynamic SIP agent statuses?

I am setting up a new server using Asterisk 1.8.11-certified4. In testing, we're seeing that agents dynamically logged into the queue will receive a second queue call as a call-waiting when ...
3
votes
2answers
392 views

cli commands not working asterisk on ubuntu

hi guys today my first day on asterisk on ubuntu. I installed vmware and then ubuntu and then on ubuntu i am running asterisk. i started the asterisk server successfully by following a tutorial. ...
3
votes
2answers
549 views

Server Freeze Up Under Load

I'm having a problem with a debian server that I thought was due to bad RAM, but is persisting. It's a Dell Poweredge 6800 with two dual-core 3.6GHZ Xeon processors and 5GB of DDR2 ECC 333. I've ...
3
votes
2answers
4k views

How to configure Asterisk to send audio before call is established

Is it possible to configure Asterisk so that it sends RTP packets with audio from the receiver before the remote party actually picks up? This seems to be required for a VoIP compliance test my ...
3
votes
2answers
263 views

Asterisk setup for Beginner

I am doing a project to Generate a call automatically to the customer with IVR support. The customer will input a PIN number. I have to extract this PIN number using Java/scripts on the Backend. I ...
3
votes
2answers
1k views

Linux DHCPD Mac-Address based Groups

Our Current DHCPD.conf looks like the following. subnet 10.0.32.0 netmask 255.255.255.0 { range 10.0.32.100 10.0.32.254; option subnet-mask 255.255.255.0; option ...
3
votes
1answer
311 views

Asterisk can't make nor receive calls through a T1 PRI interface to a Cisco 2430 router

I have an Asterisk 1.8 phone switch with a Digium T1 card. It runs using 5ESS PRI through our present phone provider without a problem. However, we're contemplating switching to Time Warner's fiber ...
3
votes
1answer
369 views

Automated reports with FreePBX 2.8.1.4

FreePBX has a 'Reports' tab that allows you to create a few reports and some of them you can export as a .csv or .pdf, but it doesn't really have any finer features than that. I would ultimately like ...
3
votes
1answer
163 views

Asterisk: Got 2 PSTN numbers, want to go IP. Need a card

I'm familiar with Networking, VoIP, Asterisk and Linux... but I've never deployed a VoIP with PSTN. I've got one week to deploy VoIP + 2 PSTN numbers, I don't mind reading like crazy but I would like ...
3
votes
1answer
2k views

Asterisk - Trying to use call files to create a conference call between two dynamic numbers

I'm trying to setup an Asterisk system that will allow me to create a conference call between two dynamic numbers. It seems I can use 'call files' to make Asterisk initiate the call without needing ...
3
votes
3answers
2k views

What's a good asterisk hosting provider? [closed]

Does anyone know of a good hosting provider for asterisk? I came across lylix but don't know if they're any good. Of course I could always install asterisk myself on a godaddy vps, but figure it ...
3
votes
2answers
4k views

Inbound SIP calls through Cisco 881 NAT hang up after a few seconds

I've recently moved to a Cisco 881 router for my WAN link. I was previously using a Cisco Linksys WAG320N as my modem/router/WiFi AP/NAT firewall. The WAG320N is now running in bridged mode, so it's ...
3
votes
1answer
583 views

Make call with alternate provider if NOANSWER

I have two voip providers, one free an the other paid. The free provider only allows local calls to certain area codes, so I need to fall back to the the paid provider if a call fails. At the moment, ...
3
votes
1answer
4k views

Asterisk SIP/2.0 401 Unauthorized

I'm running into a funny little issue with Asterisk 10.3, but it seems to be applicable to 10.4 as well. The server running Asterisk was relocated from a VPS to dedicated hardware, and now only 1 of ...
3
votes
1answer
573 views

Asterisk Server - Can't make consecutive outbound calls

One of the issues I'm having now is that if I call in consecutive times to the asterisk server from the same phone, it may disconnect. Asterisk logs the following message: [Aug 14 10:24:56] ...
3
votes
4answers
8k views

How to stop registration attempts on Asterisk

The main question: My Asterisk logs are littered with messages like these: [2012-05-29 15:53:49] NOTICE[5578] chan_sip.c: Registration from '<sip:912@xx.xx.xx.xx>' failed for '37.75.210.177' - ...
2
votes
3answers
597 views

Is It a Bad Idea to Install the OS GUI on a Server That Will Host Asterisk?

We have a server onto which we plan to install CentOS 6.2. The server will host Asterisk for our office, but is not a webserver. If we install the minimal installation for CentOS - that is, no GUI ...
2
votes
4answers
3k views

Should I use an Asterisk GUI?

In the near future I'm going to be setting up an Asterisk box to handle all the phones in our office (a linux software developer). I've had a play and the basic setup seems fairly simple, and the ...
2
votes
5answers
192 views

VOIP Power outage strategy

In the past 2 years, we have had 4 instances where we have been without power for a period of 4-6 hours - due to construction crews cutting power lines, car accidents involving downed power lines, ...
2
votes
3answers
520 views

Costs For Building An In-House Custom VoIP Gateway?

I am looking for both technical and financial advice for this. In short, my client has approached me concerning a project that they wish to undertake regarding building a very small "today" call ...
2
votes
5answers
2k views

Unable to call through asterisk

I want to create a voip service.I have installed asterisk-1.4 on a dedicated remotely hosted debian lenny distro. I made a sip.conf and extensions.conf so as to place a call between two sip phones(i ...
2
votes
3answers
1k views

PBX with Fax and Google Voice

Looking to replace/port my home number which I use for mainly faxing for my home business to a PBX server ( Thinking Asterisk or Elastix ). My question is: Does Asterisk/Elastix support Faxing ( ...