Voice Over IP

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Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

Related Topics

  1. IP Telephony
  2. Telecommunications
  3. Routers
  4. Networking
  5. Switches / Hubs
  6. Cisco
  7. VPN
  8. Exchange
  9. Networking Hardware-Other
  10. Hardware Firewalls
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I call 1800 numbers and press 0 many times and then get disconnected

and then I call back and press 1 many times


is there an automated solution to call 1800 number press (0001, 0002, 0003 , …

212 views
Microsoft Certification Exam 74-409
Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

If a home user subscribes to FIOS, do they need to purchase new phone equipment for the apartment (i.e. answering device, headset, conference phone, etc.)

622 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 …

2373 views

I have a Cisco Linksys SPA 8000.  I was wondering if there was a way to export and import the current config.

718 views

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 …

622 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?

321 views

I have the following at my main office:

1.  CUCM 9.1.2
2.  Unity Connection 9.1.2
3.  Cisco 2921 Router (H.323) Voice gateway.

We have a small branch office, that is not on the VOIP system.  …

137 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 …

527 views

We are in the middle of implementing this 'project'. We are replacing Cisco 2811 with a new ISR 4331.
The Cisco 2811 is our voice gateway.
What would be the step to take to get this done …

248 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 …

263 views
Guide to Performance: Optimization & Monitoring
Guide to Performance: Optimization & Monitoring

Nowadays, monitoring is a mixture of tools, systems, and codes—making it a very complex process. And with this complexity, comes variables for failure. Get DZone’s new Guide to Performance to learn how to proactively find these variables and solve them before a disruption occurs.

Hello EE,

I was told that there is only one supported method for backing up Cisco Phone systems with SFTP or something?
I am struggling to find something online for VOIP Call Manager and Unified …

144 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, …

875 views

I have 2 networks running call manager express. The 2 routers are connected VIA serial connection. I have voice vlans setup on each side with dhcp pools, and 1 phone on each network. The phones …

2354 views

We have a Cisco 3560G Switch - connected is 6 PC's, 6 ShoreTel IP phones, a Server and 2 Gateways; Sonicwall Router for Data and Frontier DSL modem/Router for Voice.  I want the phones and PC's to …

248 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 …

1072 views

skype.com what is good video recording software that will record audio and video but not slow down windows 10 computer

644 views

Is their a way I can increase the microphone in my laptop so that even some one wisper, I can hear it from the other laptop on internet

2183 views

Hello

Our users have two numbers for the clients essentially;

1. Their desk number
2. Their mobile number

I'd like to look into a solution where if their client wants to call them, they only…

358 views

I have an Ooma telephone system and a LSI Network-LSI PCI-SV92EX Soft Modem in a PCI/E slot on my Dell XE2 I5 Desktop with 32GB of memory running Windows 10.  I want to be able to use that modem and …

286 views
Technology Partners: We Want Your Opinion!
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

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…

27135 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…

358 views

I hope this sounds at least somewhat educated but honestly, I'm kinda flying blind here. Here's what I'm up against.

I have a Skype for Business 2015 Server that is up and running. IM and internal …

38101 views

Have Cisco UCM platform, trying to change user on a phone, went in and associated device with new user, when into device and changed owner user ID and Description, but still showing old user...I've …

1068 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 …

257 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 …

890 views
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Voice Over IP

8K

Solutions

10

Articles & Videos

7K

Contributors

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

Related Topics

  1. IP Telephony
  2. Telecommunications
  3. Routers
  4. Networking
  5. Switches / Hubs
  6. Cisco