The customer runs a Skype for Business Server 2015 on-premises deployment, and all telephony services interface with Skype for Business via a Ribbon SBC 1000 voice gateway. Now it was up to us to figure out what had happened. It was at this point where the issue came our way. Luckily, the telco was able to block any further international calls coming from JDoe’s number to avoid further charges.
What made things worse, the supposed user making these outgoing calls was high up on the corporate ladder! Let’s call him Executive “JDoe”. Within the span of 48 hours, 1000+ outgoing calls were made to various international numbers…all from a single phone number. This week one of our customers reported some strange behaviour on their telco bill.
Working for a Modern Workplace & Managed Service Provider (MSP) like Insync Technology can bring some curious and interesting issues my way.
