Polycom VVX410: Outbound Calls Suffer From a High Degree of Post Dial Delay

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Polycom VVX410 Outbound Calls Suffer From a High Degree of Post Dial Delay

Q: We ordered 5 new VVX 410 Phones. They all have the new MAC structure. We provisioned them for our client to an on-prem asterisk server plus 2 other hosted servers (asterisk and broadsoft). In all cases, the phones are running 4.1.7 FW. Inbound calls work splendidly but outbound calls suffer from a high degree of Post Dial Delay. It connects eventually and the next outbound call works immediately. Then we reboot the phone to test it, the same issue happens again on all platforms. Has anyone seen this issue?

A: I would advise you to update the firmware from 4.1.7 to 5.3.3 since there may be some instability issues with older firmware. If certain phones are doing this then I would ping those IP’s on the network to see if there are latency issues with the phones.

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