Yealink CP860 [358/417] What is pnp

Administrator’s Guide for CP860 IP conference phones

346

From: sip:sipsak@<srchost>

CSeq: 10 NOTIFY

Call-ID: 1234@<srchost>

Event: check-sync;reboot=true

The IP phone only uses logo file in DOB format, as the DOB format file has a high

compression ratio (the size of the uncompressed file compared to that of the

compressed file) and can be stored in smaller space. Tools for converting BMP format to

DOB format are available. For more information, refer to

Yealink_SIP-T2_Series_T19P_T4_Series_CP860_IP_Phones_Auto_Provisioning_Guide

available online:

http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142.

IP phones use the PoE preferentially.

Auto provisioning refers to the update of IP phones, including update on configuration

parameters, local phonebook, firmware and so on. You can use auto provisioning on a

single phone, but it makes more sense in mass deployment.

Plug and Play (PnP) is a method for IP phones to acquire the provisioning server address.

With PnP enabled, the IP phone broadcasts the PNP SUBSCRIBE message to obtain a

provisioning server address during startup. Any SIP server recognizing the message will

respond with the preconfigured provisioning server address, so the IP phone will be

able to download the configuration files from the provisioning server. PnP depends on

support from a SIP server.