IP Telephony

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IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

Related Topics

  1. Voice Over IP
  2. Telecommunications
  3. Routers
  4. Networking
  5. Cisco
  6. Linux
  7. Switches / Hubs
  8. Exchange
  9. Networking Hardware-Other
  10. Chat / IM
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I need to move a call manager which is a VM on a UCS C200. Can you please advise
on the proper shutdown procedure and the turn-up? It will retain IP address etc.
Just need to make sure I don't …

311 views
Efficient way to get backups off site to Azure
Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Have a deployment of 3 servers using dns loadbalancing.
we have a trunk setup via an sbc.
users have deskphones (CX600)



both inbound and outbound calls work as expected.


however, when a …

1042 views

I have a Zultys MX250 and today it kicked everyone out and said password was reset logoff and log back in.

this is strange.. i am and Admin and i cannot get in to the device .. help!

820 views

Is there a portal for AT&T SIP trunk customers? We've asked our AT&T sales rep and Tech consultant over and over for this information but they can't seem to find it. I want to be able to forward DIDs …

728 views

How do I go about moving from a phone number hosted with Grasshopper.com to Google Voice?

420 views

Hi

i have a Zultys Zip 57i phone that a user is having a problem with working from home.  It says no network available,

how do i get this phone to work on a home network ?

1958 views

Hello,

Can anyone point me in the right direction? There are a few google hits for this problem, so it seems like a known issue.

///////Summary: On outbound calls, we are sending out caller ID,…

135 views

Hi There,

A potential new customer asked me to do some technical work to some technical work for them as they're moving to the new office. Part of the scope of the project is to run data and voice …

455 views

Hi,

I have a question for Skype For Business.

I would like to force an update, where my Response group on my client is updated (Forced).

Here is my workflow :

I create a new distribution …

658 views

I have a traditional telephone system - PBX, analog lines, phone provider.  We have no need internally for many of the features that a full VOIP system offers - people are very happy with the phones …

23123 views
Visualize your virtual and backup environments
Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

Hi
im tasked with trying to come up with a small business phone system for 3 business users.  They are already on o365 small business premium i think and they have skype working, not that they are …

638 views

Hey Guys,

We have a Cisco SPA525G2 phone here, it's just stuck on the CISCO screen even after reboots. Does anyone have a fix for this?

348 views

I am running Call Manager 9.1.2 and Unity Connection 9.1.2 in my main office.  We have a small branch office, we ported their phone numbers over to the main office about a year back, and their Cisco …

555 views

Hello,

I have installed a CUCM Publisher in a UCS server, I have another UCS server and I need to install a subscriber, What do I have to configure in a subscriber?
The licenses are shared …

648 views

Hi Experts!

I am setting a new VoIP infrastructure and in the process deploying new firewalls and switches. I would like to utilize vlans to logically separate the voice and data but most of our …

299 views

Hello

I would like to build a mobile (iOS/Android) voice application that can connect to our internal voice infrastructure (Cisco Call Manager 10x)

We have looked at the Jabber application, …

8117 views

Hi Experts,

We just implemented a new VoIP telephone system and we are experiencing so random cracking and static on some of the phone calls.


The implementation guys are saying this is a …

10107 views

We had an 'issue' with one of our VMs, upon reboot the Linux file system needed repair.

At around the same time I see - "Lost access to volume 5351714a-0e19f12c-cc94-d072dca029b6 (datastore1) due …

179 views

We have a small network of 12 computers all Windows 7Pro on a Windows 2008 SBS server.  We have Comcast business internet with 1 public static IP that is used to point phones and MX records and remote…

27175 views
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Technology Partners: We Want Your Opinion!

We value your feedback.

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I have a sound bite (< 30 seconds) that I want to send to my wife for her to use as a ring tone on her iphone.  We don't ever sync to itunes.

I have it as an mp3.  I used itunes on my win pc to …

1058 views

have a new polycom vvx410 with the latest firmware and need to simply set a parameter to 1.

voIpProt.SIP.header.diversion.enable="1"

cant find the setting in the web interface, so i exported the…

384 views

Got a weird issue.  I have a toll free number that I’m forwarding to a cti route point that goes to a group voicemail in unity.  If I call the local number the toll free routes to, I get the …

285 views

I support a remote center that has phone over a PRI line. At the moment, no calls can go in or out. When I look at the router, Cisco 2901, there are no recent errors on the line, but the output for …

8120 views

I have a block of phone numbers with my SIP service provider. Over the last few years we have laid off quite a few people. These people were deleted from the SfB server but their extension was not …

498 views

Hello Guys,

I am looking expert  advice / help if some one can tell me how  I can enable the voice mail box in unified messageing environment.
I have all ready done following steps.
1.new mail …

3207 views
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IP Telephony

6K

Solutions

9

Articles & Videos

5K

Contributors

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

Related Topics

  1. Voice Over IP
  2. Telecommunications
  3. Routers
  4. Networking
  5. Cisco
  6. Linux