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Home - Virtual Phone Number - SIP Line vs SIP Trunk: What’s the Key Differences?
Reviewed by : Prasanta Raut
As businesses continue to grow, so there is a need for efficient and cost-effective communication solutions. One of the difficulties that companies face today is choosing between SIP lines and SIP trunks. This basically plays an important role in modern telephony; understanding the differences between them is essential for making the right choice for your business.
Both of them provide affordable ways to upgrade from traditional landline systems by removing reliance on outdated technology like public switched telephone networks.
In this blog, we will learn in deep about what is SIP lines and SIP trunks, SIP Line vs SIP Trunk, identify the key differences between them, and highlight the benefits and challenges of each of them.
Table of Content
A SIP trunk is basically a virtual connection that uses SIP technology to connect multiple SIP lines into a single and manageable unit. Instead of requiring separate physical lines for each call, the SIP trunk allows different calls to be routed through the same connection. This helps in making more scalable and cost-effective solutions for businesses that can handle high volumes of calls.
Uses of SIP Trunks:
SIP trunking is a method that is used to enable business phones to work over an internet connection instead of a traditional landline. It increases the multimedia processing capabilities of both old telephone service and basic Voice Over Internet Protocol(VOIP) enabled phone networks.
SIP trunking allows companies to transmit and receive different types of data, which includes voice calls, text and video. A SIP trunk is totally different from the SIP phone. A SIP phone is basically a device that looks like a desk phone or a speakerphone that can generate calls by using the SIP protocol.
An SIP line is a branch of an SIP trunk. It is basically a channel or a session. It plays the role of mediator, helping to exchange communication data between two points or locations. While making a call, an SIP line represents a unit’s capacity for supporting incoming and outgoing calls.
A large number of SIP lines can be configured from a single SIP trunk. In the VOIP call centers, one SIP trunk can basically hold hundreds of SIP channels. Each call is distributed for one channel. Most of the business needs a single SIP trunk to cover all the communication needs.
Common Uses of SIP Lines:
Businesses often have confusion while choosing between SIP trunks and SIP lines. Basically, they both are different from each other SIP line connects a single phone or device for making VOIP calls by the help of internet. It enables one device for making and receiving the calls.
A SIP trunk is able to connect an entire business phone system or PBX to a VOIP provider. It lets the whole internal phone network to make and receive calls over the internet.
SIP Line: This requires individual lines for every connection, it is similar to traditional phone lines.
SIP Trunk: Multiple connection is connected in a single virtual trunk; this reduces the need for an extensive physical infrastructure.
SIP Line: This has limited scalability, and adding more lines requires additional infrastructure.
SIP Trunk: Its highly scalable additional channels could be added quickly without making any physical changes.
SIP Line: Higher costs because there is a need for multiple individual lines.
SIP Trunk: It is more cost-effective and has fewer physical lines which helps in reducing the infrastructure and maintenance costs.
SIP Line: It’s less flexible and suitable for smaller steups, which have predicted call volumes.
SIP Trunk: It offers great flexibility and allows business to scale up their communication needs according to the demand.
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Hosted PBX vs SIP Trunking: Key differences and which one is better for businesses
Basically, the SIP line supports one incoming and one outgoing call at once. It is suitable for small business which has low call volume. If you rarely have more than one or two calls simultaneously, the SIP line is best as it offers a simple and cost-effective option. It is easy to scale.
I suggest adding individual SIP lines as your business grows. But it requires additional hardware. You require an IP-PBX system for managing calls across multiple lines.
SIP trunks carry multiple concurrent calls usually 10-30 or more and it is best for businesses that have higher call volume. If you have multiple employees on the phone SIP trunk can offer more efficient use of the internet bandwidth.
It’s also highly scalable. We can easily increase the number of channels within the trunk as your business grows. You don’t require additional hardware. Your VOIP service providers can handle the overall call management.
This table makes it easy for you to choose between SIP lines and SIP trunks:
Look after these points while choosing between SIP lines and SIP trunks:
Cost: Compared to SIP Trunks, SIP Lines are cheaper per line, and SIP Trunks are more cost-effective for businesses that have many concurrent calls.
Reliability: Both of them depend upon the internet connection for call quality.
Features: SIP trunks basically provide additional features like call forwarding, voicemail, and conferencing.
We don’t require physical phone lines and other hardware for installing and maintaining the SIP trunk. A stable internet connection is also required for smooth communication. This reduces the need for complex installations and maintenance costs. Setting up the SIP trunk is straightforward and efficient.
The main benefit of SIP trunking its affordable. By connecting voice, video, and data in a single platform, businesses can reduce their overall communication cost. The business shouldn’t invest in separate infrastructure for different communication channels. This leads in saving the operational costs and setup costs.
Setting up a traditional phone system is quite time-consuming and costly. SIP trunking basically allows businesses to scale up their communication needs easily. If your company is growing and requires more channels or needs to downsize, SIP trunking has the flexibility to adjust the capacity.
Basically, SIP Trunking helps improve customer service as it provides businesses an advanced communication features. These basically include call forwarding, automatic call distribution, and voice mail to email; all of these contribute to a more responsive and efficient customer service experience. Making communications smooth and enhancing connectivity helps for providing better service for your customers.
SIP trunking has various benefits. It’s essential to be aware of the challenges and considerations involved in implementing this technology.
Overall, SIP trunking helps reduce physical infrastructure needs. However, the initial setup and configuration are quite complex, particularly for businesses that are transforming from traditional phone systems. Configuring SIP trunks to work with existing equipment like PBX systems requires an expert. Businesses need to invest in specialized IT support to ensure smooth integration and timely configuration of all features.
SIP trunking basically depends on a stable and high-quality internet connection. If you have issues with your internet service, which include bandwidths, limitations, and outages, solve it quickly, as it directly affects the quality of the call as well as overall communication. Businesses must have robust Internet infrastructure which includes sufficient bandwidths as this helps in preventing communications.
It’s one of the major challenges when it comes to emergency calls like dialing 911. Traditional phone lines help in providing the location of the callers to the emergency services, but with the help of SIP trunking, this information is not available. Businesses should take extra steps to configure the systems to ensure that accurate location information is transmitted during emergency calls.
The battle between SIP Line Vs. SIP Trunk it’s over. It totally depends on your business-specific needs. SIP trunking its a wonderful investment for the productivity of your team. While evaluating SIP trunking providers for your VOIP phone system or for VOIP phone service, focus on factors like reliability, scalability, and features.
Overall SIP lines are basically suitable for smaller businesses that have limited communication requirements.SIP trunks basically offer the scalability, flexibility, and cost-effectiveness that larger organizations need. Understanding these differences will help you to make an informed decision that optimizes your communication infrastructure.
SIP trunking has great scalability and cost efficiency as it helps in connecting multiple SIP lines in a single virtual connection where SIP is basically conducted.
Yes, small businesses can benefit from SIP trunking as the business requires growth and multiple simultaneous connections.
SIP trunks can improve call quality as they offer redundancy and better options compared to individual SIP lines.
Yes, SIP trunking is quite complicated to set up as It requires more technical expertise to set up and configure while integrating with existing systems.
Prasanta, founder and CEO of Dialaxy, is redefining SaaS with creativity and dedication. Focused on simplifying sales and support, he drives innovation to deliver exceptional value and shape a new era of business excellence.
Prasanta Raut