0
votes
0answers
50 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 ...
0
votes
1answer
44 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 ...
0
votes
0answers
26 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 ...
1
vote
1answer
164 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 ...
0
votes
1answer
205 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 ...
1
vote
1answer
151 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 ...
6
votes
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 ...
0
votes
1answer
903 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 ...
1
vote
2answers
182 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 ...
0
votes
2answers
861 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 ...
4
votes
3answers
3k views

Unregister SIP UAC message

I've looked so much on the internet, but I could not find a any SIP Unregister example, and when I search RFC 3261,3665 the word does not even appear, perhaps I'm searching for the wrong phrase. I ...
2
votes
1answer
207 views

Router gets disconnected once I terminate my SIP application

Here is an interesting one, I have a SIP VoIP application which is able to register to the PBX server, and I can invite and see the user call on the callee end receiving an Invite, and on the caller ...
1
vote
1answer
192 views

What is SIP trunking?

Can someone explain to me in plain English what SIP trunking is, please? I've read about it on Google, but I don't really grasp it yet. Does it allow a VoIP call to be placed outside of the LAN? So ...
0
votes
1answer
381 views

Virtual PBX for automated attendant and SIP clients [closed]

I have a task to make our own virtual PBX for automated attendant and SIP clients. Scenario is following: We have our SIP account given from our voice carrier now I want to share these lines with ...
1
vote
5answers
788 views

Is there a stable cross-platform softphone? Or a Linux-only one?

We use an Asterisk based solution as our PBX, and although we've found hardphones work flawlessly, we have yet to find a reliable softphone. The basic requirement is that it allows multiple calls and ...