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Yealink Phone to Send Private IP Address on Register
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Ari Offline
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Post: #1
Yealink Phone to Send Private IP Address on Register
A really helpful feature of the < 83 firmware was to send the private IP address of the phone on register. This is helpful for locating and administering a phone in a network.

Code:
2019/09/17 10:53:05.975177 PUBLIC_IP:12326 -> PBX_IP:5060                                    │2019/09/17 10:53:18.681875 PUBLIC_IP:12282 -> PBX_IP:7331
                                                                                             │
REGISTER sip:sub.dom.tld:5060 SIP/2.0                                                        │REGISTER sip:sub.dom.tld:7331 SIP/2.0
Via: SIP/2.0/TCP PUBLIC_IP:12326;branch=z9hG4bK3539585581;rport                              │Via: SIP/2.0/TCP 10.0.0.12:5060;branch=z9hG4bK4046200025;rport
From: "234" <sip:234@sub.dom.tld:5060>;tag=4231823471                                        │From: "623" <sip:623@sub.dom.tld:7331>;tag=1609913972
To: "234" <sip:234@sub.dom.tld:5060>                                                         │To: "623" <sip:623@sub.dom.tld:7331>
Call-ID: 0_2813005062                                                                        │Call-ID: 3_3967202445@10.0.0.12
CSeq: 1 REGISTER                                                                             │CSeq: 47362 REGISTER
Contact: <sip:234@PUBLIC_IP:12326;transport=TCP>                                             │Contact: <sip:623@10.0.0.12:5060;transport=TCP>
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PU│Authorization: Digest username="623", realm="sub.dom.tld", nonce="e4002605-e9a1-
LISH, UPDATE, MESSAGE                                                                        │841-aff7-8ffb480434fe", uri="sip:sub.dom.tld:7331", response="81a2b738efbe4eb374
Max-Forwards: 70                                                                             │5f481d00fe0e0", algorithm=MD5, cnonce="0a4f113b", qop=auth, nc=00047361
User-Agent: Yealink SIP-T46S 66.84.0.15                                                      │Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PU
Expires: 600                                                                                 │LISH, UPDATE, MESSAGE
Allow-Events: talk,hold,conference,refer,check-sync                                          │Max-Forwards: 70
Content-Length: 0                                                                            │User-Agent: Yealink SIP-T52S 70.81.0.10
                                                                                             │Expires: 60
                                                                                             │Allow-Events: talk,hold,conference,refer,check-sync
                                                                                             │Content-Length: 0

On the right is a registration from a Yealink phone on 81 firmware and in the "Call-ID" header you can see the private IP address sent. On the left, you can see the 84 firmware does not send the private IP address.
Is there a config on the Yealink to change that?
09-17-2019 01:23 AM
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Yealink Phone to Send Private IP Address on Register - Ari - 09-17-2019 01:23 AM

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