USA-based acct | 2287 Users | 3800 DID lines | 28 sites | all Polycom VVX500 phone handsets
2019-05-21 RingCentral recently updated the RTP port range scope for your Firewall Settings and did not notify all ADMIN users in advance (again) we were experiencing intermittent outage issues where callers could connect but not hear anything for 3 days last week. This happened last month in mid-April as well.
I suggest RingCentral Engineering team get seriously proactive about notifying their entire customer base when port range settings are going to be adjusted PRIOR to doing the adjustment. I had 6 people from various departments working to find the solution to this when it was originated at RingCentral and they did not notify anyone on my Admin Team until after this had been ongoing in our system for several days and we eventually got the correct answer through our Technical Assitaqnce Manager at RC.
Network Port Range Settings Guidance updated 05-13-2019:
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