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Firewall blocking internal calls
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complex1 Offline
3CX Adv. Cert. Engineer
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Posts: 1,258
Joined: Jan 2014
Reputation: 36
Post: #2
RE: Firewall blocking internal calls
Hi,

If you don’t want to open up ports from external sources into your network then try to make use of a public STUN server. E.g. stun.sipgate.net or stun.ekiga.net or ….
Don’t know if it help to solve your issue, but you can always try.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
12-05-2016 02:47 PM
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RE: Firewall blocking internal calls - complex1 - 12-05-2016 02:47 PM

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