What is VoLTE?

VoLTE, or Voice over Long-Term Evolution, is a specialized VoIP service built into the LTE standard. By leveraging IMS (IP Multimedia Subsystem) technology, VoLTE allows users to make high-quality voice calls while simultaneously utilizing the LTE data network.

Designed explicitly for 4G LTE networks, VoLTE is also compatible with 5G mobile communication technology. In the United States, as telecom providers have retired 3G networks, 4G LTE and 5G networks have become the prevailing communication standards, with LTE expected to remain mainstream for years to come.

VoLTE vs. VoIP: What’s the Difference?

While both VoLTE and VoIP enable high-definition voice calls over IP-based networks, they differ significantly in terms of network requirements, functionality, and scalability.

1. Network Media

● VoLTE operates exclusively on 4G LTE and 5G cellular networks. It uses dedicated bandwidth for voice calls, ensuring consistent quality.
● VoIP, on the other hand, can run over any internet connection, including Wi-Fi, broadband, or mobile data networks, making it more versatile in terms of accessibility.

2. Voice Codecs

Codecs convert analog voice signals into digital formats for transmission and back into analog signals for reception. The quality and efficiency of voice communication depend on the codec used:

Popular VoLTE Codecs:

● Enhanced Full-Rate (EFR)
● AMR-NB, AMR-WB, AMR-WB+
● Enhanced Voice Service (EVS)

Common VoIP Codecs:

● G.711: Ideal for PSTN integration, supports frequencies between 300–3,400 Hz.
● G.722: Wideband codec supporting 50–7,000 Hz, offering HD voice quality.
● G.729: Low bandwidth, with just 8 Kbps, suitable for bandwidth-constrained environments.
● Opus: Ultra-wideband codec with adaptive bitrate, supporting 50–20,000 Hz for exceptional flexibility.

3. Operational Conditions

● VoLTE: Requires VoLTE-compatible devices and SIM cards. Configuration is managed by telecom providers, making it simple for end users.
● VoIP: Typically requires internet access, SIP account configurations, and potentially a Cloud PBX setup. Adding features like SIP trunks for direct dialing incurs additional complexity and costs.

4. Reliability

Both technologies rely on network quality, which can impact call performance:

● VoLTE performs best in fixed locations or within stable LTE coverage.
● VoIP’s reliability depends on the network type (Wi-Fi, broadband, or mobile) and its stability, with fixed-location setups often delivering better results.

5. Scalability

● VoLTE’s one-to-one relationship with SIM cards makes it ideal for emergency communication and seamless transitions to advanced networks like 5G.
● VoIP excels in scalability, accommodating businesses of all sizes with ease. It allows for rapid system updates to meet growing demands.

6. Cost Considerations

Both VoLTE and VoIP offer long-term cost savings compared to traditional POTS systems by reducing maintenance and operational expenses.

Choosing Between VoLTE and VoIP for POTS Replacement

While both VoLTE and VoIP serve as alternatives to traditional POTS lines, they cater to different scenarios:

● VoLTE is better suited for voice-only applications like emergency calls, analog phone replacements, and elevator systems.
● VoIP is more flexible and adaptable for applications involving alarms, modems, and fax machines, as it supports customizations to enhance compatibility and performance.

Why Choose Vola for POTS Replacement?

With over a decade of industry experience, Vola specializes in both VoIP and VoLTE solutions. We understand the importance of POTS replacement and are committed to offering reliable alternatives.

Comprehensive Hardware for POTS Replacement

POTS Box: All-Inclusive Solution

● Industrial LTE Router (LM150): Provides reliable internet access.
● Power Bank: Ensures battery backup for uninterrupted service.
● ATA Gateway (PR08): Delivers the traditional dial tone to legacy terminals.

Compact All-in-One Solution: PR12

● PR12 : Combines the features of the POTS Box (PR08 and LM150) into a single, compact unit, integrating both VoLTE and VoIP. A true game changer in the POTS replacement market.

Don’t wait until the last minute to upgrade your communication systems. With Vola, you’ll enjoy smooth transitions, reduced costs, and unparalleled reliability.

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