Costs
Cost is often the crucial factor when choosing VoIP against landline service. VoIP is usually 30-60% cheaper than conventional landline phone service.
Having multiple landline phones in the office requires PBX a private branch exchange. It is a physical piece of hardware that lives on-premises and can cost thousands of bucks.
Eliminating this initial investment, and the service and maintenance costs that go in pair with it, make VoIP a far more affordable proposition, especially for startups and SMBs that only require a few lines as they're growing.
Functions
Landline phones are limited to the most basic tasks, while VoIP phones enable for a wide range of services like a virtual receptionist, voicemail-to-email, automatic call forwarding, 3-digit dialing, and many more.
If you need advanced functions that work across multiple office locations, mobile devices, and in the cloud are essential for your business, then VoIP is the only “field” to get them.
Dependability
The maybe only advance that landlines have over VoIP phones is their reliability. Anyhow, as high-speed Internet providers continue to improve their offerings, the small gap among landline and VoIP reliability will close.
If dependability is a crucial factor of your VoIP against landline estimation, discuss with the Internet service provider to see what opts are available to ensure the connection is secure and meets the requirements of whichever VoIP provider you’re choosing.
Technology
Exchange infrastructure and copper wire of landline phone systems will likely be around for a while, it's essential to know that many phone companies are no longer committed to upgrading landline infrastructure.
Digital communications are quickly becoming the new standard in both business and customer technology, and most phone companies have committed to building a digital infrastructure in the future.
Therefore,
best VoIP for small business is a far away better solution than telephone landline.