Site A: IP Office 406v2 4.2(23), VCM 20, 2x PRI, VM Pro
Site B: IP Office 406v2 4.1(15), VCM 20, 2x PRI
We have multiple VPN tunnels between the sites using multiple ISPs, however none are of the guaranteed bandwidth type, so we can’t guarantee QoS. Thus, we have some issues with VoIP latency...