A private branch exchange (PBX) is a telephone exchange that serves a particular business or office, as opposed to one that a common carrier or telephone company operates for many businesses or for the general public.

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One-way audio problems with SIP over AT&T

I have a customer who has an VOIP PBX connected to a Level 3 fiber connection. He has offices all across the country using different ISPs. Two of those offices use AT&T, both in different states. ...
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27 views

Asterisk SIP calls between remote L2L VPN sites

I am running into an issue trying to set up another remote L2L VPN site with VoIP running SIP and Asterisk. Each remote Site (site 1 and site 2) Can talk to the Asterisk server and any phones on the ...
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11 views

Nortsatar-plus MICS on pri converting to server based PBX

I currently have a Cisco router providing our PRI, Fax, and Data. PRI to a norstar plus MICS PBX (NT7B53FA). I want to basically switch our norstar KSU for a server (2008 r2 standard or I can change ...
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53 views

Combining Elastix And Zultys PABX

have anyone integrated Zultys MX250 with Elastix? I got some problem with it. Before, my PABX is Elastix, now i want to upgrade using MX250 but keep Elastix as gateway for MX250. But i can't call out ...
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185 views

Cisco IP Phone TFTP Error/Timeout

I'm trying to get Cisco 7942G IP phone working on FreeBPX setup. It has issues with getting things over tftp. I tried hard reset thing and I'm getting this in tftpd log: [root@localhost ~]# tail -f ...
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1answer
39 views

Voicemails cutting off in freeswitch

We are using a freeswitch PBX. Any incoming voicemail getting left is being cut off after 60 seconds - i.e. the call is actually getting disconnected at that point. Regular calls are not, just ...
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2answers
697 views

Asterisk IVR setup: disallow direct dial for some extensions?

We've got PBX to configure. It's based on Elastix 2.4.0, freePBX 2.8.1 and Asterisk 1.8.20.0. Currently we have a setup for inbound calls like that: Inbound call > Announcement (30 sec) > IVR ...
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36 views

Asterisk PBX Manager not saving changes

We are implementing Asterisk 11.4 and using the native PostgreSQL database to store call data. So far, we have not been able to change the admin password through the PBX manager. The password gets ...
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72 views

Switch from E1 to Analog PSTN line on IP-PBX failure

I have two Asterisk servers, E1(PRI) Gateway Asterisk 1.4 with E1(PRI) card IP-PBX Asterisk 1.8 on VM Server When my e1 gateway is failed (ex. shutdown, no power...), PSTN automatically switch to ...
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1answer
44 views

Starting SecAstQFSFileEngine::open: No file name specified - error when starting secast

I'm receiving the below error when starting secast service secast start Starting SecAstQFSFileEngine::open: No file name specified [FAILED] Has anyone run into this issue before? I'm running CentOS ...
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2answers
72 views

Blocking geographic cities from accessing Asterisk using Secast

I am using Secast for intrusion protection on my Asterisk PBX. It’s working great, and I now want to start blocking specific geographic regions. My system is getting hammered from Ramallah ...
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1answer
11 views

C3X Polling Strategy - Fewest Answered

I've been playing around with a 3CX PBX system and have been trying to alter a call queue so that members of staff that have had the fewest calls will get called first. So I have set the call queues ...
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63 views

Connect Cisco IP phone on two Asterisk sip servers

I have a cisco ip phone with sip firmware v9.3.1. I want to connect two lines on two seperate Asterisk sip servers. In section i can only define USECALLMANAGER (in node) and not the IP of an ...
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1answer
263 views

Asterisk, How can i play an audio file [closed]

Here is the dial plan [testInComingCalls] exten => s,1,Answer exten => 30953025,1,Dial(SIP/20000,20) I would like to play an audio file as soon as somebody answered the call (Welcome Message)..
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0answers
171 views

DTMF Detection in Asterisk PBX

I have an asterisk server as IP PBX. I have created an Auto-Attendant for my company and asking users to enter desired extensions when they call. The problem is that when the message is playing and ...
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3answers
348 views

How to move a Panasonic kx-t7633 Phone

We have Panasonic kx-T7633 phones and I need to move them across office how do I activate or fix the connection after I move the phone Looked at the manual but no answers and googled it as well any ...
0
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1answer
48 views

Advice respect an architecture PBX [closed]

i'm new on the world of PBX and network infrastructure. I worked in a model and wanted to know how feasible it is to implement it in a production environment. The requirement is to create a solution ...
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2answers
540 views

Limiting Bandwidth per port Cisco router

Let's say a businessses purchases a sufficently fast internet connection (such as 60Mbps cable connection) and VOIP quality is pretty good for the most part. The only thing I would be worried about ...
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0answers
32 views

Routing SIP client thru WAN router

I may ask again: I have following setup: SIP Client on LAN can make calls, etc thru PBX (is a closed device). I want the same for the remote SIP client. Can I configure all in the WAN router ? May ...
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1answer
243 views

Asterisk PBX on linux (CENTOS 6.2) hangs up calls that are being recorded after 33 seconds

i have an issue with my calls being made via ASTERISK PBX running on linux CENTOS 6.2. The use case is that a call is triggered from /var/spool/asterisk/outbound/ The caller is dialed The dialplan ...
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1answer
302 views

What is the best option for SIP service redundancy?

From your practical experience, what is the best option for SIP service redundancy? a) one SRV record pointing to a hostname which has two A records b) two SRV records pointing to two different ...
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2answers
927 views

PBXact Behind ASA 5505 nat udp range 10000-20000

I'm installing a new pbxact phone server onsite and I've ran into an issue using a 3rd party sip, I've got the acl's for the traffic created and the traffic is allowed, I'm assuming i need to create a ...
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1answer
187 views

Shoretel Upgrade Path

I currently have a Shoretel Server running Server 2003 x32 as a virtual machine paired with a ShoreGear 90 switch and another unused switch of the same model being reserved for manual failover. I am ...
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1answer
191 views

Provisioning SIP Phones over the internet

I have a few SIP Phones that are located of site and connect to my PBX over the internet to make calls. For some reason one of these phones has become unprovisioned. In my office phones get ...
14
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2answers
1k 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.
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1answer
514 views

Elastix and two ISDN lines

Since I am not an expert on communications, I will describe everything from the user perspective. We had a PBX with elastix embedded and two ISDN cards in it (we have two isdn lines). The mobo of the ...
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1answer
207 views

DDoS attacks to PBX [closed]

I'm wondering if DDOS attacks to PBX or telecommunications systems is possibe real. According to this links: ...
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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 ( ...
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3answers
129 views

When researching an ip phone system, where would you start? [closed]

I'm one of the sysadmin's for our business and I've been tasked with researching and deploying a new IP based telephone system. I've got a solid grasp of our feature requirements, but what I don't ...
2
votes
1answer
275 views

What's the correct way to step a Draytek 3510 IP PBX to avoid line echo?

I've setup a Draytek 3510 IP PBX with 10 VigorPhone 350 handsets. It's all connected through an unmanaged 48port gigabit switch - all structured cabling except patch leads are Cat6. Dhcp is handed out ...
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1answer
250 views

Connect to Panasonic PBX from linux box

We are developing a project in a linux box and want to connect it with a existent Panasonic pbx, but it seems that there's no tool to do that, and the only way to get connected is developing yourself ...
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1answer
79 views

Best method to protect software PBX system from disaster

I have been put in charge of maintaining an old PBX system which is running Windows Server 2003 and TeleAdvantage PBX software. The big concern is that the company that originally built this PBX box ...
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1answer
1k views

Elastix 2.2 clock not keeping correct time

I'm configuring our Elastix 2.2 server and the clock was not in sync. When I check the machine in Linux this is what it says. I've tried to search for a resolution but came up empty. This is ...
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1answer
90 views

Is a PBX responsible for routing calls, or is that handled by the provider?

I am setting up a PBX that external users will connect to and I was wondering how important PBX placement was. Are calls routed through the PBX itself, or do they go directly through the provider ...
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1answer
372 views

Click to call with a soft phone

I'm trying to set up click to call with a soft phone. I'm using QuteCom for the soft phone, vTiger for the CRM and Asterisk, through Elastix for the PBX. I was wondering if someone could point me in ...
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1answer
939 views

GUI for Asterisk 1.8.8 on Debian 6

Can someone point me towards a tutorial for installing either FreePBX, or a Webmin GUI for Asterisk 1.8.8 on Debian 6? Asterisk Thirdlane Multi Tenant PBX Manager and Asterisk Thirdlane PBX Manager ...
6
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4answers
2k views

Is it possible or advisable to virtualize a PBX system? How would one go about this?

I'm totally new to the world of VoIP and we are looking to move from our current provider to a solution we host ourselves, mainly because the current service is so unreliable. Unfortunately I know ...
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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 ...
5
votes
1answer
843 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 ...
0
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1answer
3k views

Asterisk configuration for voicemail emails through GMail SMTP server not working

I am trying to configure Asterisk (running on AstLinux) to send emails when it receives voicemails through GMail's SMTP server, but it is not working. I do not receive any emails, and I get the ...
3
votes
4answers
444 views

Using the Built in Switch in IP phones

I'm working on setting up a small business with IP Phones to connect to the Asterisk Server. Now, for simplicity we just ran 2 CAT5e lines to each room, and 1 was hooked to a phone jack, before my ...
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2answers
171 views

Advantages and disadvantages to using a VPS (or any remote server) to host a VOIP/PBX system

My company currently runs a Trixbox Pro server locally. We're getting sick of the licensing fees and terrible community support and are considering migrating to something like FreePBX. I see that ...
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1answer
250 views

Off-site voip phone locking up, and I suspect firewall issues at the remote site

My Aastra 6757i off-site voip phone locks up periodically, and I want to rule out a networking problem. Most of the time calls work fine, both placed and received calls. But sometimes the voip call ...
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votes
1answer
98 views

Asterisk - which protocol/technology is using? [closed]

Asterisk installed on Linux server by other admin. I am trying to find out which communication protocol/technology is currently using on Asterisk? Eg: isdn, voip, acd, etc. I dont know which one is ...
0
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1answer
1k views

Sip configuration for Elastix, for Terrasip (Provider) with Multiple DIDs

I have just purchased several DIDs with Terrasip I have configured my Elastix (freepbx) SIP trunk according to their suggestion: Please follow this template configuration. (valid for outbound/inbound ...
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1answer
267 views

Microsoft Lync and Avaya PBX system

I am a complete beginner concercing Microsoft Lync and PBX systems, so please bear with me. I have set up a Lync standard server which is running fine. We can chat/audio & video conference on our ...
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2answers
185 views

Routing in OpenSIPS

How to modify under OpenSIPS1.6.4 the default routing to switch the From: field in every instance of incoming SIP packets to a predefined string? According to the documentation the $fd pseudovariable ...
6
votes
4answers
592 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 ...
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2answers
109 views

Software/Hardware used to build Virtual PBX Like Systems

I work for a large web site design and hosting firm. We are planning to introduce a suite of SEO services. I have been given an interesting task as part of the development effort. The goal is to ...
0
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2answers
895 views

Lync Server 2010 with Hosted VoIP PBX

We just deployed Lync Server 2010 in our organization and it is working great so far. The next step for us is to enable enterprise voice so that we can replace our telephones with service that is ...