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T21P : no audio when connect via openvpn
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kohan Offline
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Post: #1
T21P : no audio when connect via openvpn
Hi..
I have problem when connect remote yealink t21p via openvpn (server voip : trixbox)..
Remote yealink was succesfully conected to voip server via openvpn server, the phone was also registered in voip server..
When I make a call from/to remote yealink t21p (that connected via openvpn server), the phone is ringing but no audio (when I talk, the other side can't listen)..
Is this some BUG from yealink or there are some setting must I modificate??

Please help..
04-14-2016 02:35 AM
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Klaus_Yealink Offline
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Post: #2
RE: T21P : no audio when connect via openvpn
please see the message I replied you with the ticket.
04-14-2016 05:48 AM
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kohan Offline
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Post: #3
RE: T21P : no audio when connect via openvpn
Thank you for your fast respon good advice.. it's very useful..
i had try your advice, my openvpn is working and i can talk with yealink in remote site with that openvpn system..
but now i have problem again..
When yealink connected to voip server via openvpn server and the set time/clock is "DHCP time enable", the yealink time/clock change to default setting (fabrication time maybe, january 2015), or with another word my yealink is not receives time/clock setting from openvpn server.. with that time/clock setting, yealink can not connect with openvpn server because CA/client certificate expired (certificate validity from April 2016 - 2026)
when yealink setting is "DHCP time enable", i can not change "manual time" from disable to enable..
when i change yealink setting from DHCP time" from enable to enable and i set "manual time" enable and i set with real time/clock, yealink can connect with voip server via openvpn server, but if I restart yealink phone, time/clock setting change to "DHCP time enable" in january 2015 and yealink can't connect to openvpn server again..

What do you think about my case/problem? Is the problem in my openvpn server or in yealink phone?
Can you help me solve my problem?

Thank you..
04-16-2016 12:43 AM
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