This is an old subject, but in case anyone is still interested, Meraki implemented a new feature for VoIP insight, which is Best Effort Monitoring: There are some VoIP servers that do not allow or drop the ICMP pings used for monitoring VoIP statistics such as MOS, loss, latency, and jitter. However, as VoIP services are critical, we have integrated Best Effort Monitoring to MI VoIP Health to give a “nearest” best estimation on VoIP performance for a given link. You can enable it by clicking on the Best effort monitoring checkbox when adding a new VoIP server:
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