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Telecom Testing is defined as the testing of Telecommunication software. Since the shift of the telecom sector to digital and computer networks, telecommunication industry uses software indispensable. Telecom sector depends on the various types of software components to deliver many services like routing and switching, VoIP broadband access, etc. Hence, telecom software testing is inevitable.
In this tutorial, you will learn-
Join our Live Telecom Testing Project for FreeWhat is Domain in Testing?
A domain is nothing but the industry for which the software testing project is created. When we talk about software project or development, this term is often referred. For example, the Insurance domain, Banking domain, Retail Domain, Telecom Domain, etc.
Usually while developing any specific domain project, domain expert help is sought out. Domain expert is master of the subject and he may know the inside-out of the product or application.Why Testing Domain Knowledge Matters?
Domain knowledge is quintessential for testing any software product, and it has its own benefits like
Recommended Telecom Testing Tool
HeadSpin helps leading telcos around the world to monitor and improve 5G user experience, improve OTT streaming experience, test data, messaging services, validate device compatibility, and deploy software at the edge. Given the hyper localisation of 5G and setup of mobile private networks, Telcos, ISV’s and their end customers require an end-to-end solution that optimizes a combination of real networks, computing technologies, and endpoints for real-world performance visibility. HeadSpin combines real-world edge infrastructure and data science to enable testing and edge experience with the following use cases which are key to perfecting user experience for telcos:
Monitor and improve 5G user experience
Test network device compatibility
Test, monitor & analyze data, voice and messaging services
Ensure pre-release device compatibility
Drive/walk test for local experience – Cellular/WiFi handoff
Deploy software at the edge
Improve OTT streaming experience
Network throttling using HeadSpin Automation APIs
Monitor client experience for roaming performance
Regression intelligence – build over build comparison to measure performanceBusiness Processes in the Telecom Industry
For telecom testing end-to-end service verification is important. To ensure efficient testing a good understanding of the different Business process is a must.
You need to understand each stage of service deliverability before drafting the test cases.
Telecom services are either based on a business support system that includes IVR’s, Call Centers, generating invoices, etc. or an operation support system that includes routers, switches, cell towers, etc.
The following table shows what activities are performed at different levels
Telecom Department Telecom Activities
It handles all the sales information like discounts, services, promos, etc.
Applying for a new connection or disconnecting a connection
This division deals with the physical connection between customers and TSP ( Telecom Service Provider)
Under this division, all billing work is done
In case of any failure, this division corrects the problem
It is the repository of all information
This division tracks the ordering system and the status of an orderTypical Telecom Business Process
Following is a typical business process in the Telecom Industry.Types of Protocols used in Telecom Industry
Here the popular protocols used in the Telecom industry
VoIP technologies: VoIP, IMS, MPLS, ISDN, PSTN
Signaling and Protocols: SIP, ISDN, Codecs, H.323
Wireless technologies: GPRS, CDMA, GSM, UMTS
Network Management: SNMP
Layer 2 Protocols: ARP, STP, L2TP, PPP
Layer 3 protocols/routing: ICMP, BGP, ISIS, MPLS
Infrastructure/Security: ATM, TCP/IP, LAN/VLAN, SSH
You can learn more about Protocol Testing hereTesting LifeCycle in the Telecom Industry
The Test Lifecycle in the telecom industry is similar to that of any other industry but with a stress on details. Here is how the test lifecycle looks like along with the test artifacts.
Telecom Testing Stage Test artifacts
Requirement based test artifacts
Feasibility based artifacts
Standard and policy identification based test artifacts
Operation and maintenance considerations related test artifacts
System test artifacts (Security, Installation)
Test artifacts for virtual prototype
Special System Testing artifacts ( interoperability, disaster recovery)
Unit test artifacts
Integration test artifacts
Quality and performance artifacts
Regression, load testing, sanity, etc.
Acceptance test artifacts
Integration test artifacts
Quality and performance artifacts
Functional test artifacts
Alpha/Beta test artifactsTypes of Testing Performed on Telecom Software
Automation TestingSample TestCases for Telecom Testing
In Telecom Testing, one must consider the testing following
Various Telecom Testing Testing activities in Telecom
Verify, the telephone number of the customer is registered under telecom operator
Verify whether the number is still working
Verify the number entered is valid, and it is 10 digit number
Verify the number is not blocked due to some reasons
Verify if the number has any outstanding bills, if exist, display it on screen
Verify the number has all previous accounts or bills cleared
Verify the system enables statement generation as per customer requirement
Verify the system has recorded a number of calls accurately
Verify the plan chosen by the customer displays on the billing system
Verify the total amount billed is accurate and mapped to the service offered
Protocols, signaling, field testing for IOT
Usage and Functional Testing for core Mobile handset applications like a call, SMS, transfer/hold, etc.
Testing of various applications like finance, sports and location-based services, etc. OSS-BSS testing
Billing, customer case, interconnect billing, order and fraud management, revenue assurance
Network management, mediation, provisioning, etc.
EAI, CRM & ERP, data warehousing, etc.
Electrical interface compatibility
Conformance of protocol
Conformance of transport layers
Interactive test scenarios
Detection of voice energy
Broadband audio tones
Extensive conditional branching sequences
The telecom service is a very broad field consists of a various component including cables, networks, signals, protocols, etc. and their testing requires a broad range of testing techniques, so the choice of testing techniques and strategy highly depends on what component of telecom is tested.
The test requirement, scope, test scenarios, testing techniques, testing tools, etc. varies with the type of testing involves, it can be protocol testing for VoIP or wireless device testing for CDMA. The tutorial gives a basic but complete overview of how telecom testing can be performed and discuss various prospects that are crucial for telecom testing.
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