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

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

parameters, local phone book, 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 CFG files from the provisioning server. PnP depends on support

from a SIP server.

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Do one of the following:

 Ensure that the configuration is set correctly.

 Reboot the phone. Some configurations require a reboot to take effect.

 Ensure that the configuration is applicable to the IP phone model.

 The configuration may depend on support from a server.

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They are codes that the IP phone sends to the server when a certain action takes place.

On code is used to activate a feature on the server side, while off code is used to

deactivate a feature on the server side.

For example, if you set the Always Forward on code to be *78 (may vary on different

servers), and the target number to be 201. When you enable Always Forward on the IP

phone, the IP phone sends *78201 to the server, and then the server will enable Always

Forward feature on the server side, hence being able to get the right status of the

extension.

For anonymous call/anonymous call rejection feature, the phone will send either the on

code or off code to the server according to the value of Send Anonymous Code/Send

Rejection Code. For more information, refer to Anonymous Call on page 242 and

Anonymous Call Rejection on page 247.