How the telecom experts revolutionize the industry with a new test automation solution Daniel Tiefnig, Andreas Granig, Markus Seidl | © Carolin Bohn For over a year, Andreas Granig has been busy preparing to reshape the communications business again with his new startup Sipfront. With their six-figures investment, Daniel Tiefnig and Markus Seidl are now joining as partners.
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If your automated test runs pass, all is good. But what if they fail, and even more so, if they fail sporadically and non-reproducibly?
A case for monitoring and observability platforms Passive monitoring solutions are great tools for Telco operators to retrospectively troubleshoot call scenarios. If a particular customer raises a ticket about failed calls, you can quickly and easily drill down into the call flows, bits and bytes of the involved SIP messages, to uncover the reason for the issues.
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Robocalling, or the automated generation of calls - combined with spoofed caller ids (calling party numbers) - is illegal in most of the countries, but is still rising especially in the US.
STIR (Secure Telephony Identity Revisited) and SHAKEN (Secure Handling of Asserted information using toKENs) are the standardized frameworks to fight these illegally spoofed calls.
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The vast majority of Telco Systems under Test (SuT) are located in private networks or behind firewalls. The reason for that is that a big part of testing takes place in development environments (which often reside directly on developers' computers), in confined lab environments, or within Continuous Integration workflows. Production systems on the other hand are usually protected by firewalls and ACLs and only allow traffic from and to certain IP address ranges.
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A lot of engineers working in the Telco industry, and particularly those with an affinity towards open source, know about sipp, the performance testing tool for the SIP protocol.
Many of those engineers know the default key mappings of the console based interface by heart. Increase the call rate by one with + or by ten with *, quit with q etc.
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