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2020-11-11

Bearer Loss Events

How to efficiently deal with dropped calls

For customers, there is little that is more dissatisfied than call drops. But the equation is simple: more mobility (i.e. more handovers) and more traffic load lead to more dropped calls. Extremely helpful in understanding them are SIP reason headers (RFC 3326). They indicate why a SIP request was issued. Specifically, when a call is dropped for technical reasons, the final BYE message includes a reason header specifying the actual drop cause. Qrystal’s statistical analysis of these reason headers is thus key to identifying and solving dropped calls in VoLTE services. A recent customer case solved using Qrystal impacted millions of customers – and demonstrated that the network is not kidding when it reports “Dedicated Bearer Lost”.



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Data protection
We, VOIPFUTURE GmbH (Registered business address: Germany), would like to process personal information with external services. This is not necessary for the use of the website, but allows us to interact even more closely with them. If desired, please make a choice: