User manual

For more details, you can refer to the user manual,
http://www.yealink.com/Upload/ip/T38G/QuickInstall/YealinkSIPT38GUserGuide-17182927
946.pdf
8. Q: How can I use the dual headset feature?
A: If enable this feature, you can connect first headset to the headset port, connect the
second headset to the handset port. When talking with the other party, the two headsets
can hear the voice at the same time, but only the first headset can talk with the other party.
This feature often used in the training mode, the student can hear the communication
between the coach and the trainer.
Access to the phone webpagePhoneFeaturesAudio Settings, and enable the Dual
headset option.
Auto Provisioning
1. Q: When it comes to auto provision, what is the difference between a Common CFG file
and MAC-Oriented CFG file?
A: During provisioning, a phone will try to download 2 CFG files, one is Common CFG file and
the other is MAC-Oriented CFG file. Common CFG file will be used by a specific model while
MAC-Oriented CFG file will be used only by the phone that is using the specific MAC address.
For example, during provision, for a T28 with MAC 0015651130DB, it will try to download
y000000000000.cfg that is for all T28, and 0015651130DB.cfg that is only for this phone. The
format of the content of these 2 files is completely the same. If there’s any conflict, the
MAC-Oriented file has higher priority. For more details, please refer to Auto Provision
Manual.
http://www.yealink.com/Upload/AutoProvisoning-17095068456.zip
2. Q: Why can’t I upload the local phonebook via auto provision?
A: Please check whether the format and file name of your phonebook.xml file is correct. If
you don’t know what’s local phonebook format , you can export a local phonebook from the
phone to view. The name must be “contactData1.xml”.
3. Q: What is PnP which mentioned in auto provision?
A: PnP stands for Plug and Play. It is a method for our phones to get the provisioning URL. If
the phone is with PnP enabled, when it boots up, it will send multi-broadcast message to its
network, any server (usually the PBX) recognizes the message will respond with the
preconfigured provisioning URL, so the phone will be able to download the CFG files from
that URL. It needs the server’s support.
4. Q: How to use the AES Encryption tool?
A: Please refer to the document:
http://www.yealink.com/Upload/document/AES%20Encryption%20Tool.rar