Which switch features are typically used with voip

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What switch features are typically used with VoIP?

VoIP: changing functions and protocols

Key Features of VoIP SwitchSome of the major features of the VoIP switch include billing system, class five softswitch, resellers and agents, user portal and online payments. Other features include routing, live call monitoring, media gateway, reporting, customer management, DID management, web portal with WebRTC.

VoIP technology is as popular today as television. Organizations in all industries around the world are using VoIP in their business operations to improve communication, reduce costs and access changed functionality. Although you may have heard of the word VoIP switch before, do you know what it means, how it works or its features? This article is here to help you know more about VoIP Switch.

What is a VoIP Switch?

VoIP Switch Meaning 

A VoIP switch is a necessary device to power VoIP with other network devices. It is a central tool in a telecommunications network that connects telephone calls from one telephone line to another, via a telecommunications network or the public Internet, entirely using software running on a general use. It is considered to be one of the most critical aspects of VoIP technology.

However, purpose-built hardware carries most landline calls, softswitches use general-purpose servers, and voice-over-internet protocol technology is becoming increasingly popular. Today, most telecommunications networks use combinations of VoIP switches and more traditional specialized hardware.

A VoIP switch is also called VoIP Softswitch for VoIP server. It is a scalable SIP platform with IP PBX calling features such as wholesale VoIP termination callback services, calling cards and hosted call centers. It has features like Voicemail, Messaging, Call Waiting, Three-Way Calling, Voicemail Waiting Indicator and supports protecting the network from a host of cyber attacks. The main difference between IP PBX is its large number of users.

How does the VoIP switch work?

The VoIP switch has a database of subscribers and phone numbers. In case it does not have the information it requires, it hands off the request downstream to other soft switches until it locates one that can answer the request. After it locates the subscriber, it locates the current IP address of the appliance linked with that user in a similar series of requests.

It sends back all the critical information to the softphone or IP phone, enabling the exchange of data between the two endpoints. VoIP switches act as a complete and comprehensive network management solution for VoIP carriers, thus enabling service providers to build reliable VoIP networks easily. 

The central call processor is a segment of hardware that runs the VoIP switch and depends upon a variety of protocols for all of the appliances in the network to work seamlessly. Whereas at this period there are many protocols being used, H.323 is most popular. Initially established by the International Telecommunication Union (ITU), it was built with the specific needs of video conferencing since it needs real-time, highly intensive data to work well.

Other protocols include SIP, Session Initiation Protocol, which is much more streamlined and was established to manage VoIP software demands. The piece added one of the challenges facing the global use of VoIP is that these protocols are not always compatible. VoIP calls going between several; networks may operate into a snag in case they hit conflicting protocols. Because VoIP is a comparatively new technology, this compatibility problem will keep on being an issue until a governing body comes up with a standard universal protocol for VoIP.

Whereas VoIP switches have come along way since their inception, there is still room for growth.

What features does VoIP switch use?

VoIP switch capabilities

Below are some of the key elements of VoIP switches.

Routing

  • Multiple routing plans
  • Traffic failover with many waterfall levels
  • Load balancing or sharing for termination endpoints
  • Least cost routing

Billing

  • Mobile top-up support
  • Multi Currency support
  • Real-time multi-layer charging
  • Subscriptions and packages
  • Support postpaid and prepaid services

Live call monitoring

  • Graphical subscriber interface which portrays real-time information
  • Detailed SIP logs
  • Active call list details
  • Absolute calls monitoring (pending, connected, and failed)

Media Gateway (VoIP Box)

  • Call recording
  • Interactive Voice Response (IVR) system with XML based flow scenarios
  • Call transcoding
  • Multi-language support
  • Customizable IVR scenarios

Reporting

  • Subscribers reports with full CDR
  • Traffic reports for SMS and calls
  • Sales reports for payments, revenue with full CDR
  • Charts reports for concurrent call duration, calls, and ASR.

Client management

  • Customer wise separation IVR, language management and currency management
  • Three levels of resellers plus one level of commission-based agents
  • Three types of customers (Wholesale, Retail and IP PBX)

SDA management

  • Supports multiple currencies 
  • DID Extensions
  • Personal DID management with online DID purchase
  • Integration with the APIs of over twenty DID providers
  • Advanced and customizable interactive voice response (IVR) scenarios

Web portal with WebRTC

  • video call
  • group discussions
  • Self-care portal for individuals and companies
  • Present and IM
  • Click to call with HD audio, video, file sharing and chat

online payments

  • Vouchers via web, IVR, mobile app
  • Integration with over fifty credit card payment providers
  • Mobile payments with Apple in App, Paypal and Google

What protocol does VoIP use?

List of VoIP Protocols

VoIP, IP telephony, needs several specialized protocols to provide voice communications between all parties in a call. However, since VoIP provides these communications over a network or the Internet, it also indirectly depends on network protocols to facilitate operations. Below is a list of VoIP protocols.

COPS, Common Open Policy Service Protocol

It is a proposed standard protocol for distributing network policy information from a policy decision point, such as a network switch, to policy enforcement points. COPS is deployed to prioritize video, voice, and other high-bandwidth traffic as part of Quality of Service (QoS) for Voice over IP connections.

Communications over IP (CoIP)

It is a set of standards that define the transfer of video, voice, text and any other type of digital communication over the Internet. CoIP is considered an extension of VoIP. VoIP can also mean Conferencing over IP.

DS or Differserv, Differentiated Services

It is a method of offering different levels of service to network traffic based on class of service or QoS configuration.

For example, voice traffic requires a specific amount of bandwidth, low delay, and less jitter, so it would be given priority over other types of traffic in case DiffServ is implemented. DiffServ controls bandwidth allocation for IP telephony connections as well as Internet multimedia connections.

Discovery of distributed universal numbers

It is a peer-to-peer system for translating internal phone numbers and extensions into Voice over IP addresses. Each DUNDI (Distributed Universal Number Discovery) customer must know at least one other DUNDI customer, and one of the peers must know how to reach the desired number or extension. DUNDI offers directory services accessible using VoIP protocols such as H.323 or Session Initiation Protocol (SIP) to help route calls from originators to recipients.

XMPP, Extensible Messaging and Presence Protocol

It is an Extensible Markup Language-based protocol that is used to exchange near real-time communications, such as instant messages and other request and response services, and to censor online presence .

As XMPP evolved, it added an extension to multimedia session services known as jible, which offers VoIP calls in addition to XMPP.

H.248 protocol

This protocol is also known as Media Gateway Control Protocol or Megaco. It is used to manage both session management and signaling for multimedia conferences. H.248 allows a media gateway to control communications between circuit-switched networks and packet-switched networks, and can also be implemented to establish and terminate calls between multiple endpoints. Originally defined in RFC 2705, MGCP is a protocol that allows ports above a media gateway to be managed by a call agent, if that is the media gateway controller. h.


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