- Release & Upgrade
- Release Notice for RMS V2.5.24
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- Why are PBX's Becoming VoIP Based?
- What's the Meaning of PBX And How does a PBX system work?
- How Is Ip Pbx Different From Traditional PBX?
- How does a hotel phone system work?
- What is PSTN gateway?
- Is VoIP Phone worth it for a small business?
- The Difference Between A Ip Phone And A Voip Phone
- Can you use your old phone with VoIP?
- What Is The Sip Response Code?
- What is VoIP Server And How a VOIP Server Works
- What is SIP 500 error
- What Is Voip Gateway
- Ip-pbx Vs Voip Gateway
- Best PBX Phone System Features for Businesses
- How to Setup a VoIP System in Office
- PBX Software Features
- Traditional IP PBX configurations
- How to choose business telephony system
- IP PBX vs. Traditional PBX
- PBX IP PBX and VoIP technology Advantages
- Guide to Business VOIP PBX
- PBX phone systems for small businesses
- How Does a SIP Gateway Work?
- SIP, VOIP & IP Phones
- VoIP Phone Systems - Create the Perfect Business Phone System
- What Is a PBX Phone System
- How much business Phone System
- What is a PBX System
- Why use VOIP
- What are the advantages of VoIP services
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- Flexible Hotel Phone Systems From New Rock
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- VoIP to the hospitality industry
- Hotel phone system improves hotel service experience
- Why is a Hotel Phone System Important
- How Hotel Phone Systems
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- Hotel VOIP telephone system
- Small Hotel Phone System for up to 50 Rooms
- How Hotels Use a PBX Phone System
- Application Notes
- How to Integrate MX Gateway with OM IP-PBX
- Interconnect Two PBXs with FXO Gateways
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- Connecting MX100G-S SIP-ISDN Gateway to Elastix
- Connecting MX100G-S SIP-ISDN Gateway to Asterisk
- Expanding PBX Extensions to Remote Sites through IP Network
- Multi-site Configuration for Gateways with Analog PBX
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- Security Configuration Guide for New Rock OM Series IP-PBX
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- Smart Switchboard Introduces Exclusive Premium Customer Services
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- New Rock’s New Gateway Security measures
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- Top Three Advantages of Gateways with Imbedded VPN Clients
- Low-Cost, High-Quality Gateway
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- Two Typical Applications for Telephone Networks
- IPv6’s Top Three Advantages in VoIP Applications
- MX100G-S SIP-ISDN Trunking Gateway Training
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- OM SIP Trunk Configuration Documentation
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- PT4800 Quick Installation Guide
What’s the Difference between VoIP Gateway and SIP Trunk?
Update Time:2019-11-29 14:19:36 Browse Times:4392 Amount Downloads:1
What is SIP Trunking?
SIP trunking is a method by which business phone systems can operate using an internet connection instead of a traditional phone line. It replaces traditional telephone lines or PRIs (Primary Rate Interface). It uses VoIP to connect a PBX between the internet and the Public Switched Telephone Network (PSTN), replacing a traditional "phone trunk" such as a PRI or analog line.SIP trunking is provided by SIP providers, which are similar to traditional phone companies, except SIP providers give access to phone lines over the Internet (and SIP service is significantly less expensive – sometimes as much as 60-80% less).
SIP trunks are virtual phone lines that enable users to make and receive phone calls over the internet to anyone in the world with a phone number. SIP trunks utilize a packet switch network, in which voice calls are broken down into digital packets and sent across a network to the final destination.
Today you can buy a SIP trunk from an ITSP (Internet Telephony Service Provider) and connect it to your VoIP/IP PBX. SIP trunks use the SIP standard. The name ‘trunk’ comes from the telecom world and it means, more or less, a group of phone lines.
How Does SIP Trunking Work?
The PSTN is a circuit switched network, which requires a physical connection between two points to complete a call. SIP Trunking eliminates the physical connection to a phone company. There are no hardware, wiring, or circuit boxes to maintain for connection to the phone service provider.A SIP trunk is installed virtually over your business’s existing internet connection, therefore replacing the need for traditional analog phone lines.
Reducing multiple phone lines into a single point of entry drastically reduce charges for incoming lines and the IT cost associated with the maintenance of those lines.
What’s the Pros and Cons of SIP Trunking
Compared with traditional phone lines, SIP trunking has the following benefits and disadvantages.Pros:
- More cost-effective for businesses
- Scales quickly and service can easily be modified
- Connections are virtual, so no physical lines
Cons:
- Quality of Service (QoS) is not guaranteed, for Internet connections may introduce lag and delay if not configured correctly or bandwidth is insufficient
- Does not work natively with older analog or digital phones
What is a VoIP Gateway?
A VoIP gateway is a device which converts telephony traffic into IP for transmission over a data network.The VoIP gateway allows to make calls via VoIP. Calls can then be placed via a VoIP service provider, or in a company with multiple offices, interoffice calling costs can be reduced by routing the calls via the Internet. VoIP gateways are available as external units. A VoIP gateway has a connector for the IP network and one or more ports to connect the phone lines to it.
How Does a VoIP Gateway Work with SIP Trunks When without an IPPBX
As a matter of fact, there are multiple application scenarios for VoIP gateways working with SIP trunks. Here just take a diagram to show a typical deployment.Take a look at this diagram on SIP trunking via a VoIP gateway:

Benefits of VoIP Gateways
Compared with traditional PBX, VoIP gateways have the following benefits.In a traditional network to SIP deployment, a gateway significantly reduces operating costs by connecting a legacy business phone system with dynamic SIP trunking services. SIP to traditional network deployments use a gateway to connect a modern SIP communications system with digital or analog service from legacy carriers.
Additional benefits include built-in business continuity features, network consolidation, and Unified Communications features like video, presence, application integration, and instant messaging.
New Rock VoIP Gateways
New Rock MX series gateways can process up to 96 simultaneous VoIP calls, and support G.711, G.729A, G.722, G.723, G.168 echo cancellation, RFC2833 and SIP INFO for DTMF transmission, T.38 fax relay, and more.HX4G analog gateway: 2-4 FXS/FXO
MX8G analog gateway: 8 FXS/FXO
MX60E analog gateway: 8-48 FXS/FXO
MX120G analog gateway: 48-96 FXS/FXO
MX100G-S SIP-ISDN trunking gateway: 1-4 T1/E1
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