Voice Over Internet Protocol is a name of a family of technologies that allows transmission of voice over an established network connection. What is usually discussed, though, is Internet Telephony - bidirectional voice (and lately video) transmission over public networks.
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36 views
Realms in Asterisk
How can a system (Asterisk) accept realms? I mean, for example we have two SIP accounts: exampleuser@test.com and exampleuser@anothertest.com. For Asterisk by default, these two accounts are the same ...
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0answers
11 views
Firefox can't find the file at sip: xxxx
Hi have a voip service that works great and use Bria Counterpath softphone - also good. I have installed a click to call add on for Firefox and keep getting this error:
Firefox can't find the file ...
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1answer
46 views
Wake on LAN/VoIP for Skype use?
I'm surprised I can't find this anywhere, but is it possible to have a sleeping PC wake up when a Skype call comes in? If so, how to set it up? Using XP.
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0answers
69 views
Converting G.722 audio files using ffmpeg
I have a G.722 RTP stream that was captured with Wireshark, and am trying to convert it to PCM using ffmpeg. I have done similar things with other codecs (like G.729), and the conversion works ...
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0answers
45 views
User-hosted VoIP with decent clients?
My friends and I often use Skype to communicate. We really hate it. I've looked for some alternatives, but none seemed promising. So, instead of looking for some service like Skype, I decided to look ...
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1answer
33 views
Using Ekiga from a hotel
Since Skype crashes whenever someone signs in, signs out, or sends a chat message, it has become unusable and I need to change. A post at AskUbuntu lists Ekiga as an alternative. When I try to use ...
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1answer
67 views
How many users could I host on a VOIP server running on my home internet connection?
I have 25 Mbps on the downstream and 2 Mbps (250 KBps) on the upstream. I imagine upload speed is most important.
For a very high quality TeamSpeak audio codec, bandwidth transfer for a single user ...
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0answers
118 views
Using CISCO EPC3925 cable modem as gigabit switch + VoIP gateway without CATV signal
I need a cheap router with gigabit switch + one FXS port (VoIP). There are some but very expensive. I found used CISCO EPC3925 cable modem which got everything I need.
My question is if I plug ...
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3answers
86 views
What is the difference between VOIP and Internet Telephony?
These terms are often used interchangeably. Is there any difference the two terms, or is one of the terms subset of another?
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0answers
42 views
setup voip adapter dlink-7111s :how to accept an incoming land line call?
I try to get my d-link device 7111S voip adapter accept incoming land-lines calls ,
when i call to my device through landline (that is not voip call) just after FXO pick up the call i get busy tone ...
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2answers
136 views
Send and receive phone call and SMS on a computer?
I am currently in mainland China, I want to send and receive phone call& SMS on a computer.
I tried Google Voice as well as Skype. Their outgoing call is all right, but it seems impossible to get ...
2
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1answer
73 views
Which codec should I choose to work with in a VoIP project? [closed]
I would like to work with a codec in a project for the university. I'm interested in the VoIP telephone service. The idea is to implement the codec in a DSP and then characterize it. My question is ...
2
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4answers
557 views
How can I use a fax machine over WiFi?
I have a fax machine in a location that is accessible only through nearby WiFi. I'm in an unusual situation where it must be an ancient fax machine and not a nifty eFax solution (much to my chagrin.) ...
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1answer
372 views
How can I stop Raid call from loading when I start my computer?
Every time I boot into Windows, Raid call automatically starts.
Is there a way to stop Raid Call starting whenever I boot up my computer?
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1answer
198 views
Asterisk Has Consistent 100% CPU Load On One Core
http://i.imgur.com/sySQfsH.png
Please note the screenshot. I have an Ubuntu 12.10 box running Asterisk. I ssh'ed into the server the other day to find asterisk running at 100% CPU on one core, and i ...
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0answers
190 views
how to reduce h264 annex B NAL unit sizes to avoid IP fragmentation?
I'm trying to stream a video over to a terminal using RTP. The video is coded in h.246. I'm using ffmpeg to extract the byte stream according to h.264 annex B :
ffmpeg -i test.h264 -vcodec copy -vbsf ...
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1answer
60 views
Will I need to put a filter between a ADSL router and a phone?
I have a Naked ADSL connection (no dial tone, connects to ADSL internet only) with an ADSL router plugged directly into the wall. All calls are made using the VOIP ports on the ADSL router. Should I ...
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1answer
54 views
Do I need to subscribe to a VOIP service if I have a VOIP server configured?
VOIP has caught my interest today as it seems to be a great solution for somebody who travels frequently and needs to make cheap/free calls from wherever.
I know I can setup my own PBX server with ...
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1answer
142 views
VOIP (Skype, Lync) 'stutters' with my ISP. How can I prove it?
When I am on VOIP calls (Skype or Lync) most of the time the calls suffer quality issues where the person on the other end cuts out. 4 perfect seconds, then 1 to 1/2 a second of what the other person ...
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1answer
57 views
Teamspeak sound injection program? [closed]
I asked about a program that can "inject" and play specific sounds (audio files) in a skype call a while ago and I got this in reply: http://sourceforge.net/projects/skypeplayer/
Well, now I need ...
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0answers
24 views
Using a PC + headset as a telephone without VOIP [closed]
I'm trying to find a way to realize a decentralized callcenter, so that the callcenter agents can talk from their home office with just a PC + headset.
The big challange is that some of the agents ...
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2answers
134 views
Sharing a wireless network connection with a wired connection
I have a need to setup a VoIP phone that needs to be plugged into a wired net. However, I only have wireless Internet access as the modem/router are upstairs and not accessible to the phone. I have a ...
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1answer
237 views
Is there a mature, reliable VoIP client in Windows RT? [closed]
I am considering purchasing a Windows RT device. I currently use Bria on my IOS devices, which works pretty well (except for battery life).
Anyway, I noticed on CounterPath's website, that they do ...
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1answer
107 views
Why do I need a managed switch and which one should I buy?
I bought a 2nd router and I want both routers to have direct WAN access to the modem.
One of the 2 routers directs VOIP traffic to a telephone line port. This VOIP service is provided by the cable ...
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0answers
54 views
Vlan on astaro 120
(I'm not 100% sure where networking/router questions go this is my best guess)
I have a astaro (sophos) white UTM 120 router for work
I also have about 11 Voip phones with an externaly hosted pbx ...
2
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0answers
61 views
VLAN & VPN for IP Phone [closed]
I have a LAN with some IP phone and some PCs. This LAN is connected via VPN to another office.
For several reason I cannot change the IP address of the IP Phone (static) and for the PCs (DHCP): the IP ...
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2answers
181 views
Sipura / Linksys / Cisco SPA3102 problems with analogue phone
I have bought 2 of these SPA3102 - One direct from china(verified original) and one from Ebuyer UK but it is called SPA3102 -UK
I find this guide and followed it
I am only going to talk about the ...
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0answers
61 views
How can I make Skype completely mute the audio when no one is talking (or mute my mic)?
I've been searching for a while without help, but the only thing I found was a Wikipedia article about "Voice activity detection" and a paid application called Solicall that creates a virtual audio ...
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1answer
199 views
How to establish SIP connection, when SIP-proxy is required?
I have
Asterisk/1.8.13.1
Asterisk GUI-version : SVN--r
Yes, quite old one, but I can not update it since this is installed on my Synology NAS. NAS is connected to internet thru router Asus RT-N16.
...
0
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1answer
115 views
Asterisk distribution with very fast deployment [closed]
I have zero experiences with Asterisk but need to choose the best bare-metal distribution (running as a VM guest) for my needs.
Asterisk server will answer calls, auto responder says caller ...
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2answers
117 views
Is there such thing as a software switchboard for Trixbox/freepbx/asterisk? [closed]
We use Trixbox CE and would like something so that we can load a window that tells us which lines are in use around the office. Currently no need to use it to actually make calls or anything, but just ...
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1answer
122 views
Asterisk extensions.conf confusion
Hopefully someone out there has an answer, but I have a couple lines in an existing configuration I need to fix and with a somewhat weak understanding of how Asterisk works.
First off, I have a ...
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0answers
29 views
How do you pull older phone reports from a Mitel 5000 CP [closed]
I'm using the Mitel System Administrator and Diagnostic tool that comes with the Mitel 5000 CP product. On the last page, there is a reports tab. Unfortunately I only get 1 week's worth. How do ...
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0answers
168 views
Freeswitch errors out when trying to place call
I have Freeswitch instance set up. My local network consists of d-link dir501 router, PC with freeswitch running and laptop and tablet with SIP clients. I want to connect from one of those devices to ...
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1answer
161 views
What does it mean to 'unlock' a VOIP adapter?
I'm thinking about buying VOIP adapter for home use. I already use SIP software on my PC and Mobile, but i think it would be easier to just pick up the phone at any time and call. And I could recycle ...
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1answer
120 views
fail to reload module res_odbc.so in asterisk server
I configure my /etc/asterisk/modules.conf file with following code:
[modules]
autoload=yes
preload => res_odbc.so
preload => res_config_odbc.so
After that, i went back the CLI console to ...
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1answer
83 views
SIP load balancing
Folks, we own a set of phone numbers which we have routed to our VOIP provider. In turn, they forward the calls to our Asterisk box coloed in their datacenter.
Is there any possible way to get ...
0
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1answer
77 views
Can I use a Bluetooth headset with my Windows desktop/laptop for Skype or other VOIP applications?
Can I use a Bluetooth headset with my Windows desktop/laptop for Skype or other VOIP applications?
I am considering purchasing a MOTOROLA H730
3
votes
1answer
222 views
Is there actually a way to make video calls through XMPP/Jingle WITHOUT Google Talk?
Good day people,
I'm writing because I've spent the whole day trying to make video calls through XMPP but I haven't really found out if it's actually possible. There are many clients which ...
1
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0answers
82 views
How to run secure voip traffic without using vpn
I use quintum tenor for voip traffic using VPN SSL Tunnel. VPN server is based in another country. VPN used enough bandwidth, and we need to reduce bandwidth consumption. Is there any SECURE way to ...
2
votes
1answer
232 views
What other ports should I block to maximize server security? PS using IPTABLES
I have blocked ports 80, 9001, 9080.
What other ports should be blocked to maximize security?
PS: It is a asterisk server / PBX
Sorry: New Systems Admin here :)
Thanks!
0
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0answers
41 views
Make and receive calls from and to PC to mobile and vice versa [closed]
I want to route normal phone calls (i.e. calls made from landline or mobile) to VoIP and vice versa.
Fr example, if I dial a number from a PC I will be able to call the other person, and the other ...
1
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1answer
3k views
Viber on Windows 7 [closed]
Is there any tweak or workaround to run Viber on Microsoft Windows 7 (not Windows Phone)?
Thanks a lot.
0
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0answers
96 views
VoIP Call Forwarding errors, inbound / outbound calls fine
I've got a Siemens Gigaset C470IP phone system in my office, and it's connected to a Linksys X3000 router. When I'm not in, I would like to set up the phone to automatically forward all calls to my ...
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2answers
188 views
Can Microsoft's Lync VOIP functionality be scripted?
My employer uses Lync for all of our desk phones, and one of the features of Lync is that you can set your phone number to forward to another, say your cell or home phone.
To do so, you have to ...
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0answers
24 views
What does a device with 2FXS & 2 FXO mean [duplicate]
Possible Duplicate:
What does a device with 4 FXS mean?
as title,
What does a device with 2 FXS & 2 FXO mean
is it mean that i only can connect to 2 phone?
thanks
1
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1answer
79 views
What hardware device do I need so I can connect my phone with an ethernet jack to my wireless internet
I have a telephone which has an ethernet jack in the back (it uses VOIP). It will sit on the 2nd story of my house. My wireless router is on the first floor of my house.
What wireless ...
0
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0answers
46 views
NBX v3001 new phone account: all incoming calls directly diverted to voicemail [closed]
That's my problem: I've added a new user in our NBX v3001 3com (now hp) and all the incoming calls are diverted, without ringing, to the voicemail.
The phone is a Sip Endpoint Terminal and I really ...
0
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2answers
59 views
Sending voicemail to email inbox [closed]
Is there any software that makes it possible to send voicemail from a specific cell phone or Skype number to a specific email address? I'd like to be able to check my voicemail and email at the same ...
0
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0answers
74 views
Single PBX internal extension TO VoIP account
I have a traditional PBX with no option to set any SIP account as internal client extension.
So just an old-style PBX with analog/ISDN phones attached to.
Now what I want to know if there's any ...
