Questions tagged [voip]
Voice over Internet Protocol (Voice over IP, VoIP) is one of a family of internet technologies, communication protocols, and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.
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how to associate an ip with a name?
I have installed an asterisk on my private network(so it s behind a router ). Is there anu way to set the asterisk on a public ip though it's installed in a server with private ip? As Ive read it ...
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Asterisk - inbound calls from SIP DID trunk "rejected because extension not found"
I have a DID with DIDforSale that's pointed at my Asterisk server. When I call it from my landline phone I get the AT&T disconnected line recording. The Asterisk CLI shows the error message:
[Oct ...
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Dumping configuration from a Sipura 8800
Is there any way to retrieve the configuration from a Cisco Sipura 8800?
And no, I'm not talking about nonsense like saving the HTML pages. I'm talking about saving the proper .xml configurations so ...
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Asterisk DID incoming rules =s
So I have a 10 way SIP trunk from a UK provider. Calls in and out work fine, but as I have multiple numbers for different purposes I set up the inbound rules for each number but they never work, only ...
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VOIP network and Computer Network together
I have two networks, my main data network which is a domain controller and my VOIP network for phones. Both networks have completely seperate hardware (routers,switchs, e.c.t) I woul like to have ...
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Linux audio capture at a rate of 20ms is choppy
I am currently working on an embed linux video server. When I deployed the application to the boards we are planning on using for production I noticed that the audio was noisy.
I discovered that the ...
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Extremely Poor VOIP Audio Playback Performance During Live Phone Calls with Remote Desktop Services
The setup:
Plantronics USB CS50 Headset > USB Port of "Thin Client" (Running Win Pro) > (Wireless) RDP to Remote Desktop Server > Eyebeam Softphone Client > VOIP Server > Caller (cell phone or ...
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I need some advice to come up with a network plan, or sort of anyway
At my workplace we have been allotted a few IP addresses by the ISP. I think currently one IP is accessible from the outside (by accessible I mean in a browser). Typing this IP into a browser gets you ...
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How do I change outside access number from 8 to 9 in Cisco UCM?
I want to change my outside access number from 8 to 9 in Cisco Unified Communications Manager. I've copied all of my 9.x route patterns to create a duplicate set of 8.x route patterns.
When I try to ...
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Calling out from Asterisk Server
I have an Asterisk server connected with a Legacy PBX. This setup is connected to another Asterisk Server (In another country) over the Internet with an IAX2 Trunk. Inter Office Extensions are ...
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Whats wrong with this router config
This is a Netgear FSM7328S which we have VOIP phones hooked up to. The phones will come online for a few seconds\minutes then drop, at which point, we need to go around and manually reset all the ...
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Cisco site-to-site VPN, Site B has voice but no data or internet access
I am working on my first Cisco project. Site A has a Cisco UC520 with working VoIP phone system configured. Site B has a Cisco 880 router. My goal is to connect each site with this VPN connection.
...
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How can I limit Asterisk's Chanspy feature to certain channels?
I'm using a standard config of Asterisk 1.4 with FreePBX using the chanspy feature code. I want to restrict what channels it is possible to spy on, ideally doing this in a .conf file. How would I do ...
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Asterisk-Dahdi, get status channel
I have Asterisk 1.6 with a analogic card X100p that work properly. I want to detect if the card is in use or not (the status of the card).
Please any one get the problem before ?
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Asterisk and AddPac AP 100 connectivity
I have analog phone connected to AddPac gateway. I am trying to connect it to asterisk through SIP. Here is the configuration (relevant lines):
sip.conf
[user]
type=friend
context=office
host=192....
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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 ...
user78442
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Routing VoIP and Internet traffic
I work for a school district with the following configuration:
Two remote sites connect to a main site via T-1s, then the main site has 3 T-1s which provide Internet access, advanced content ...
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I need to create a network for a call center [closed]
I have:
a patch panel with 24 ports.
Windows server
voip connection (voice over ip)
How do I make the connection from the patch panel to the router?
Do I need a router? If yes does it need to have ...
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I need to create a network for a call center [duplicate]
Possible Duplicate:
I need to create a network for a call center.
I have:
a patch panel with 24 ports.
Windows server
voip connection (voice over ip)
How do I make the connection from the patch ...
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voip / ip phone recommendations
We have an aging digital phone system at my office. We would like to replace it with something modern, such as an IP based phone system. I have read a bit here and there, even browsed through some ...
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routing calls from landline to end user cell phones
I have to setup a server to route telephone calls coming to a particular landline no to cell phone phones depending upon the availability of user.
I want to know what technology call centres or ...
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Asterisk Call Center Report - Inbound and Outbound Calls
We currently use Asterisk to run our call center which handles incoming calls (both direct dial to extension and queues) as well as a bunch of outbound calls. Up until now, we've used a custom report ...
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Basic Asterisk Help
I'm very new to Asterisk but not Linux
I have followed some of the tutorials online but have been unsuccessful each time, this is what I want to achieve, but can you help me with what I need to put ...
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Are Cisco Small Business 300 series switches compatible with pre-standard PoE detection of old Cisco IP-phones?
I have a humble Cisco SF302-08MP managed PoE switch that I'm trying to use for powering an old Cisco 7902G IP phone. This phone uses the proprietary Cisco pre-standard (i.e., non-802.3af) PoE ...
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Is subnetting worthwhile\possible to seperate out VOIP in my situation?
I'm ballparking the numbers here, but I have 50+ machines and around 30 hard VoIP devices. Unfortunately, 10 or so PCs use the 100Mb pass-through port from the VoIP phones and 2 PCs use softphones (+...
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IPv6 in a Small Business
I’ve been tasked to identify a new server and IT equipment for the company I work for (employees <20). I’m looking at getting a SBS 2011 Standard box.
My Question is:
Apart from ensuring that our ...
Martyn
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Adding more than one IP to sip.conf tcpbindaddr and udpbindaddr (Asterisk 1.8)
The defaults in the sample sip.conf under Asterisk1.8 contain udpbindaddr=0.0.0.0 and tcpbindaddr=0.0.0.0. I want to bind the incoming [foo] extension to udp:192.168.1.1/255.255.255.0, the outgoing [...
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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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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 ...
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Asterisk Environment
I'm interested in building a small Asterisk environment to explore Asterisk.
I understand that these are multiple questions, but considering how closely related these are to each other, I decided to ...
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How to route VoIP phone through VPN
We have two offices (China and US) connected by site-to-site VPN using 2 Linksys RV082's. We also have a VoIP system with 2 VoIP phones in the China office. We have been having trouble with the ...
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Want to use GSM Asterisk AX4G card
Im a Asterisk newbie, i want to setup a simple PBX with inbound and outbound calling.
I have zeroed on "GSM Asterisk AX4G card" as the telephony card.
While purchasing this card on their website they ...
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Lync 2010 SIP Trunk Providers
I'm playing around with a small Lync implementation in my home office and would like to try replacing my 3cx server with it. Currently I use callcentric as my VoIP provider, but based on another ...
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Asterisk Sip trunk though a PIX 501 firewall
I'm using an asterisk VOIP server, and I'm able to make called though with my SIP client. The problem I get is one-way voice. I can hear the incoming voice but the caller can not hear me. I have no ...
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iperf - first packet loss and acceptable jitter
I'm using iperf to test the bandwidth on my network. I have a few questions:
1. I'm running this command on the client: "iperft -c -u -b 400m" and it successfully runs. I'm running the command ...
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VOIP over Comcast causing problems
We're running a VOIP system over Comcast. The problems are:
Some calls don't complete (both incoming and outgoing)
Some phone calls get terminated in the middle of the call.
I want to run some kind ...
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Architecting network with 10 Mbps half duplex phone system
Current Configuration
The diagram below shows our current network architecture. All connections are running at 100 Mbps full duplex with the exception of the TalkSwitch phone systems which run at 10 ...
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How do I bond ADSL lines for VOIP?
We're using G711a as a codec, and I wanted to bond ADSL lines to give me the maximum possible upstream. I know that there can be issues of packet re-ordering etc; what is the 'right' way to do this? (...
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How many concurrent calls can a 0.9Mbit connection handle with G711a?
We've been using G729 but the call quality was terrible. I swapped over to G711a and everything was perfect. We've got about 0.9mbit upstream. What's the maximum theoretical number of calls, and how ...
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How can I record a call transfer with freeSwitch?
I am using freeSwitch to terminate calls that originate on the local network from an IVR system. I have it working with several different voip terminators, and I can record sessions successfully, ...
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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 ...
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VoIP and Vlan implementation
I'm implmenting VoIP on our network across 30 buildings on a University campus. Would it be best to put all the VoIP phones into a single vlan or splits them in separate vlans for each building? Am ...
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Troubleshoot 3COM 3001 NBX ip_unknown problem
Things are getting pretty desperate here...
My 3001 NBX from 3com (R6_5_20) has been working perfectly for months... Now it works for more or less an hour and then all the phones in the branch ...
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Setup Cisco RVS4000 QOS for VOIP
Just switched from dedicated T1's with analog phone lines to cable modem with 10/2 uplink. We're having some VOIP call quality issues on the outgoing side when bandwidth is stressed and I need to ...
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Isolate Multiple WAN Connections on Sonicwall
I currently have a cable connection running through our Sonicwall firewall providing WAN access to users. We have a fiber connection coming in shortly which will be used for IP telephony. I would like ...
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VoIP PBX dilemma
Our phones are currently provided through a local hosted VoIP company and it isn't working all that great. As a result, we have decided to move to a local PBX server and bring a few PSTN lines to our ...
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Sound disappeared on IVR in Asterisk
I'm setting up an IVR in asterisk. It was working fine but I installed some new hardware and the sound has disappeared. I can see this in the console:
Feb 22 22:24:00 DEBUG[10555]: pbx.c:1697 ...
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VOIP and internet connection speeds [cable vs. fiber]
Our office is migrating to IP telephony. We have less than 10 employees that will be using the phones. We currently have cable internet, and they just bumped the speeds:
There is a data center ...
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It is possible to set up an Asterisk PBX running on EC2 and have reliable call quality?
There is an EC2 kernel with a 1000Hz clock, which I have successfully used to set up Asterisk etc already, but I am wondering if other issues (e.g. transit from London to Dublin to London- our current ...
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vSphere Promiscuous mode only receiving packets one way from network switch
We have two network switches, a POE switch (SwitchA) to power our phones / users computers and a non-POE switch (SwitchB for the rest network.)
Each switch is setup to do port mirroring to support ...
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