Operation Manual

ST2030s VoIP Business Phone
ST2030s SIP Administrator Guide v3.0 Page 118 of 308
SIP Message during call (rfc 3428)
Currently, ST20xx supports SIP message method. But it is limited to in idle
status. In other words, the phone can only receive short message pushed by
server in idle mode to indicate its current status.
Now, starting from the new release, SG x.67.2, St20xx not only supports the
receving message in idle mode, but also in conversation mode.
The existing parameter still keeps using with purpose to avoid attacks.
Messages coming from other servers which were not the configured one on
parameter will be rejected.
From the below network trace, it shows that the phone receives SIP
message “ST2030s SIP Message testing” from server side.
The text contained in the SIP MESSAGE body is displayed on the 4th line of
the LCD for ST2030 and on the 2nd line of the LCD on the ST2022, same as
previously.
SIP MESSAGE text location on ST2030:
SIP MESSAGE text location on ST2022: