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

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In previous Mom’s calling Q&A series, we have discussed: Connect Multiple Agents to the Same Softphone. Today, we have more new real questions and answers from VoIP users just like you.

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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Ying-Hui Chen

Ying-Hui ( Evy), has been working at VoIP Supply since November 2015. She is currently working in the Marketing Department helping with market research, SEO analysis/ tracking, email marketing and blogs. Connect with her on LinkedIn.