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SIP-T21P and SIP-T22P Registration problem in Tunnels
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James_Yealink Offline
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Posts: 1,159
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Post: #2
RE: SIP-T21P and SIP-T22P Registration problem in Tunnels
Hello,

What's the firmware of the T21P and T22P?
Have you tried setting the "Server Expire" under account interface to a short value like 60 and check again?

To the second question, T21P and T22P can't not be connected through telnet or SSH.

Regards,
James
07-29-2015 06:13 AM
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RE: SIP-T21P and SIP-T22P Registration problem in Tunnels - James_Yealink - 07-29-2015 06:13 AM

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