Yealink CD860, Administrator'S Manual

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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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application by receiving and handling an HTTP or HTTPS GET request. When receiving a
GET request, the IP phone will perform the specified action and respond with a 200 OK
message. A GET request may contain variable named as ―key‖ and variable value,
which are separated by ―=‖. The valid URI format is:
http(s)://phone IP
address/servlet?key=variable value
. For example: http://10.3.20.10/servlet?key=OK.
Note
SIP Notify Message
In addition, Yealink IP phones support performing the specified action immediately by
accepting a SIP NOTIFY message with the ―Event: ACTION-URI‖ header from a SIP
proxy server. The message body of the SIP NOTIFY message may contain variable
named as ―key‖ and variable value, which are separated by ―=‖.
This method is especially useful for users always working in the small office/home office
where a secure firewall may prevent the HTTP or HTTPS GET request from the external
network.
Note
Example of a SIP Notify with the variable value (OK):
Message Header
NOTIFY sip:3583@10.2.40.10:5062 SIP/2.0
Via: SIP/2.0/UDP 10.2.40.27:5063;branch=z9hG4bK4163876675
From: <sip:3586@10.2.1.48>;tag=2900480538
To: "3583" <sip:3583@10.2.1.48>;tag=490600926
Call-ID: 2923387519@10.2.40.10
CSeq: 4 NOTIFY
Contact: <sip:3586@10.2.40.27:5063>
Max-Forwards: 70
User-Agent: Yealink SIP-T23G
Event: ACTION-URI
Content-Type: message/sipfrag
Content-Length: 6
Message Body
key=OK
If you want to only accept the SIP NOTIFY message from your SIP server and outbound
proxy server, you have to enable the Accept SIP Trust Server Only feature. For more
information, refer to Accept SIP Trust Server Only on page 316 .
Yealink IP phones are compatible with other two old valid URI formats: http(s)://phone IP
address/cgi-bin/ConfigManApp.com?key=variable value
and
http(s)://phone IP
address/cgi-bin/cgiServer.exx?key=variable value
.