Yealink SIP-T27P [752/841] Procedure

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones

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Both user name and register name are defined by the server. User name identifies the

account, while register name matched with a password is for authentication purposes.

Display name is the caller ID that will be displayed on the callee’s phone LCD screen.

Server configurations may override the local ones.

IP phones support remote reboot by a SIP NOTIFY message with “Event: check-sync”

header. Whether the IP phone reboots or not depends on the value of the parameter

“sip.notify_reboot_enable”. If the value is set to 1, or the value is set to 0 and the header

of the SIP NOTIFY message contains an additional string “reboot=true”, the IP phone

will reboot immediately.

The NOTIFY message is formed as shown:

NOTIFY sip:<user>@<dsthost> SIP/2.0

To: sip:<user>@<dsthost>

From: sip:sipsak@<srchost>

CSeq: 10 NOTIFY

Call-ID: 1234@<srchost>

Event: check-sync;reboot=true

Procedure

Changes can only be configured using the configuration files.

Configuration File

<y0000000000xx>.cfg

Configure the IP phone behavior

when receiving a SIP NOTIFY

message which contains the

header “Event: check-sync”.

Parameter:

sip.notify_reboot_enable