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Firewall blocking internal calls
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Lucia_Yealink Offline
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Posts: 467
Joined: Aug 2016
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Post: #3
RE: Firewall blocking internal calls
Hi Sir,

Yealink phone support STUN, do you have STUN server in your side, can you use this function?

Please see the detal port information below:
UDP/TCP(SIP message): 5060~5069 default 5060
UDP(audio): 11780~11800 default: 11780(RTP)/11781(RTCP)
DHCP Server: local port 68, destinstion port 69
NTP Server: 1024-65535,default 123
Syslog Server: 1024-65535,default 514
WEB Server: 1~65535,default 80(HTTP)/443(HTTPS)

For more information about STUN, please refer to the Guide from page 85 to 99:
http://Yealink_SIP-T2_Series_T19(P) E2_T...V81_15.pdf
12-07-2016 02:05 AM
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RE: Firewall blocking internal calls - Lucia_Yealink - 12-07-2016 02:05 AM

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