Class 4 vs Class 5 Softswitch – Key Differences

Feature / Function	Class 4 Softswitch	Class 5 Softswitch
Primary Purpose	Wholesale VoIP traffic routing between carriers	Retail VoIP services for end-users (businesses, enterprises, individuals)
Target Users	VoIP carriers, wholesale providers, ISPs	Enterprises, call centers, ITSPs, VoIP resellers
Call Routing	Long-distance, international & inter-carrier call routing	Local, mobile, and residential/enterprise call handling
Key Features	Least Cost Routing (LCR), protocol conversion, QoS, carrier interconnects	IVR, voicemail, conferencing, call forwarding, video calling, caller ID
Scale	Handles high volume of concurrent calls (wholesale scale)	Handles smaller, end-user traffic but with advanced features
Billing	Wholesale billing, real-time traffic reporting	Retail billing, prepaid/postpaid options, Agents & Customer-level reports
Protocols Supported	SIP, H.323, MGCP, RTP etc.	SIP, WebRTC, RTP etc.
Integration	Carrier-grade systems, wholesale billing, fraud detection	IP PBX, CRM, ERP, SIP softphones, mobile/desktop apps
Deployment	Cloud or on-premises, carrier data centers	Enterprise servers, hosted PBX, multi-tenant VoIP platforms
Best For	Wholesale VoIP carriers, international telecom operators	Enterprises, call centers, VoIP resellers, hosted PBX providers

Key Benefits Our Custom VoIP Softswitch Solutions

Scalable Architecture

Handle thousands of concurrent calls without compromising on quality.

High Security

Advanced encryption, fraud prevention, and secure SIP protocols.

Flexible Customization

Tailored to your business model (wholesale, retail, or hybrid).

Advanced Billing & Analytics

Real-time billing, CDRs, and traffic monitoring.

Global Connectivity

Interconnect with Tier 1 and Tier 2 carriers worldwide.

Cost-Effective

Reduce CAPEX/OPEX compared to legacy switching systems.

VoIP & SIP Softswitch Explained

Rirabh VoIP Softswitch

Rirabh’s VoIP Softswitch is a stable, reliable, and high-performance SIP Softswitch designed for modern telecommunication networks. It provides dynamic routing based on price and quality, connecting voice calls efficiently across networks.

Types of VoIP Softswitch

Class 4 Softswitch: Routes large volumes of long-distance calls, ideal for telecom carriers.

Class 5 Softswitch: deal for small businesses and residential VoIP, supporting local and long-distance calls.

Key Benefits

Reliability & Flexibility

Add or remove phone lines easily without changing physical infrastructure.

Reliability & Flexibility

Add or remove phone lines easily without changing physical infrastructure.

Cost Efficiency

Reduces hardware dependency and overall communication costs.

SIP Softswitch

SIP Softswitch uses the Session Initiation Protocol (SIP) to initiate and terminate VoIP calls. It ensures smooth communication across different devices, tools, and networks, making it essential for integrated IP multimedia communications via internet, landlines, or wireless.

New Releases

SMS Features with SMS Billing
PIN to PIN Balance Transfer
Mobile Topup
Callshop System

Account and user management

Account and user management
Multiple Calls on one account
Account for New Phone Number
Customer management
Prepaid/Postpaid recharge
Agent account
Batch management
Signup(customer)
Account detail(Agent, Customer)
Caller ID Authentication
Recharge/Payment Online
SIP Device Add/Delete
Block Prefix
CDRS
Invoice
Charges
IP Termination (Wholesale)
Real-time billing
Multiple level reseller
Multiple provider creation & login

IVR Management

IVR prompts( balance,destination, credit time)
Customize IVR in multilanguage

IPPBX Features

Call Conference
Call Recording
Call Transfer
Call Queue
Announcements
Ring Groups
MOH (Music on Hold)
Follow Me
IVR(Interactive voice response)
Voice Email
Time Condition
Time Groups
CDR Report
Add / Import User
SIP Settings
Trunk Settings
Out Going Call Rules
Incoming Call Rules
Dial Plan

DID Management

DID Management from Portal

Web Interface

Multi Language Support
Real Time Customized Billing Interface (Color & Theme of Form, Table, Menu & Buttons)

Mobile Dialers Features

Customized with company logo/name
Unlimited user license
User Friendly, Advanced and Smoother GUI
SIP protocol support
Making and receiving calls
Recent call
Call Hold
Call timer
Redial
Speaker
Display Balance
Call Log
Call Status Indicator
Save / Edit Username & Password
Phone Book (Synchronize with Phone Address Book)
Silence Suppression
Echo Cancellation
Registration Timeout

Mobile Dialers Features

Intel Core i5 Processor /32 Gb RAM/1 TB HDD

Software Requirements:

Debian 11.x (complete installation)

Carrier:

Carrier which supports SIP calls, g711, g723 and g729 codecs.

Pre-installation Considerations:

Here is some information that we think is worth knowing prior to installing the Adore Unified VoIP Phone System.

Linux server should be on public IP.
SSL Certificate should be install on the Linux server

Internet connection:

The use of a 1Gbit Ethernet card is a prerequisite for Adore system with good broadband internet connection .

Installation:

Rirabh requires remote access of server for installation. The installation of “Rirabh All in One System” will be done by SSH connection on Linux server.Its installation requires internet facility and the time taken for its set up mainly depends on the nature and amount of customization to be done and the nature of service provider’s infrastructure. Our competent and reliable force of engineers renders spectacular services in solving every bit of installation related problem.

UI/UX Design

Modern, user-friendly, and conversion-focused designs.

Ready to scale your Softswicth development with us?

Flexible Scalability

Easily expand your setup as your business grows—from a single user to a large enterprise—without the need for extra equipment or complicated configurations.

High-Quality Connections

Experience clear and uninterrupted voice and video communication, with minimal downtime and reliable performance even during peak usage.

Secure & Cost-Efficient

With strong encryption and access controls, your communication remains private and secure—all while saving on hardware and telecom expenses.

Automation and cloud-based

Automation and cloud-based options reduce operational costs while improving billing accuracy and overall business productivity.

Unified Communication

Rirabh brings together calls, video meetings, messaging, and collaboration tools in one seamless platform, helping teams stay connected and work more efficiently.

Softswitch Development - Custom VoIP Class 4 & Class 5 SoftSwitch

VoIP Custom Softswitch Development

Industries we Serve

Our Custom Softswitch Development Services

Class 4 Softswicth Development

Class 5 Softswicth Development

Advanced Customization & Features