Expand Your Business Through A Single Connection


What Is SIP Trunking?

Choosing the best SIP trunk provider for your voice platform requires thorough analysis of your company requirements. Session Initiation Protocol (SIP) technology provides increased voice connectivity, flexibility, and security for your conversations over an internet connection.

The Session Initiation Protocol (SIP) is used to establish a voice over IP (VoIP) call. It’s an application layer protocol used to establish real-time audio and/or video sessions between two endpoints (phones). SIP is the technology that creates, alters, and ends sessions with one or more parties in an IP network, whether a two-way call or a multi-party conference call.

Any company that has a modern IP PBX (a PBX that allows the usage of SIP to transfer data) also needs a mechanism to link their exchange to the larger PSTN. Previously (with previous PBXs), this was accomplished through the use of ISDN. With ISDN slowly being phased out, SIP Trunks are quickly becoming the industry standard for connecting business phone networks over the internet.

Reliable SIP Trunking is the way to go


SIP trunking allows businesses to operate a phone system over the internet instead of over physical lines and on-premise solutions. SIP trunking offers businesses enhanced voice quality calling. In addition, you get pay-as-go pricing – saving you from paying for minutes you don’t use.


SIP Trunking acts as a go-between for your company phone system and your Internet Telephony Service Provider (ITSP). See the diagram below to see how calls move from a business’s SIP phone (VoIP) to the outside world—it’s interesting!

What do you need
for a SIP Trunk to work?

For a company to use this online service, it needs to have the following features:

  • Switchboard
  • High-quality internet connection
  • A VoIP telephone provider
  • IP phone or softphone
  • Fixed IP address

What is the Difference Between SIP and VoIP?

SIP and VoIP both refer to internet telephony and are technically different. They’re often seen as two different options you can choose from.

VoIP is a general phrase that refers to any phone call done over the internet rather than the traditional, physical telephone line. VoIP stands for Voice over Internet Protocol.

SIP is one of these protocols—a specialized protocol that allows VoIP. If VoIP refers to the type of phone call you’re making, SIP is the protocol utilized to make that call.

In other words, the primary distinction between VoIP and SIP is their scope. VoIP is a family of technologies, not a single one. SIP falls within the VoIP category.


  • Handles only voice and messages
  • All operations are handled by one system
  • Rely on an IP-enabled phone and IP software to connect
  • It Is not possible to integrate with apps such as Salesforce or Microsoft Office


SIP Trunk

  • Handles all types of media
  • Uses several systems to handle various operations
  • Independent from other devices
  • Integrates with nearly any external program without any Issues

What is a Direct Inward Dialing Number (DID)?

Want a low-cost approach to allocate and maintain phone numbers for different persons in your company?

Direct Inward Dialing (DID) numbers are your best solution.

In brief, your DID number identifies a certain phone, and your SIP trunk connects that phone to the internet. When someone calls a DID, the SIP trunk connects the call to the internet, and the DID routes the call to the appropriate phone.

Because DID numbers are virtual, they can be issued or reassigned to any phone or device. They’re also adaptable, allowing organizations to create an unlimited number of DID numbers on a single SIP trunk with little constraints.

This is why, almost often, using a single provider for both your DID numbers and SIP trunking connection is simpler and more cost-effective. Otherwise, you may be charged extra for each DID number, which adds up as you purchase more phone lines. DID numbers in conjunction with SIP trunking are a low-cost solution that results in high-quality calls. However, there is a more traditional solution.

SIP Trunks and DIDs work together to create a cost-effective and efficient calling solution

High Performance Support



To get started, choose from one of our BACK2BACK
plans below based on your business’ needs and requirements


  • 5 Voice Channels
  • 30 Direct Dial Numbers
  • Call Rates- 0.09
  • Registration Fee-RM500(Waived)
  • Free Mins-500 Mins


  • 10 Voice Channels
  • 60 Direct Dial Numbers
  • Call Rates- 0.09
  • Registration Fee-RM500(Waived)
  • Free Mins-500 Mins


  • 15 Voice Channels
  • 90 Direct Dial Numbers
  • Call Rates- 0.09
  • Registration Fee-RM500(Waived)
  • Free Mins-600 Mins


  • 18 Voice Channels
  • 120 Direct Dial Numbers
  • Call Rates- 0.08
  • Registration Fee-RM500(Waived)
  • Free Mins-700 Mins


  • 40 Voice Channels
  • 250 Direct Dial Numbers
  • Call Rates- 0.08
  • Registration Fee-RM500(Waived)
  • Free Mins-1000 Mins


What is SIP Trunking?

SIP, which stands for Session Initiation Protocol, is simply a method of establishing and terminating connections for data and voice transfers over the internet. The term ‘trunking’ is a bit of a red herring, as a trunk used to refer to a bundle of phone lines shared by users. Modern trunking is a virtual link that uses an internet connection to connect your PBX to the normal phone network (the PSTN).

What is SIP used for?

SIP is generally used to initiate, manage, change, and terminate real-time sessions (connections) involving video, phone, message, and other communications applications and services between two or more endpoints over I.P. (internet protocol) networks.

How Can Switching to SIP Trunks Benefit Your Business?

When you use SIP trunking, phone calls flow over the Internet in the same way that other forms of media do. Calls between employees in your firm are free, just as you do not pay for each individual email you send to a colleague.

It makes no difference if they work in different offices or if one of them works from home. Even long-distance calls are more cheaper because the call only travels a short distance across the PSTN.

Who should consider them?

It’s simple: any business! If you already have an IP PBX, you will (or should) be aware that SIP Trunks are a critical component. If you’re new to phone systems or upgrading from an analogue PBX, your options are an on-premise (commonly shortened to “on prem” in industry jargon) IP PBX or a fully cloud-hosted PBX system.

How do I set up a SIP Trunk and how much does it cost?

SIP configuration is fairly simple. Costs vary depending on where you purchase your SIP trunk. Contact us today and we’ll set everything up for you at a reasonable price.

Not sure how it works?

We will assist you to identify the best option.