Thanks everybody for your input.<br><br>Let me summarize localization process :<br><br>1. Buring boot, phones download from TFTP server an xml or older .cfg file in which a localization parameter is set.<br>2. When this parameter is read, phones will then ask CCM or Asterisk or another server to send localized button templates using SIP messages.
<br>3. When SIP messages are received, phones will then localize buttons and menus.<br>4. Whenever an incoming or outgoing call is processed, phones will no further ask any localization data from CCM or Asterisk or anything as localization was fully done during initialization process.
<br><br>A. Is this correct ?<br>Specifically, shall I understand that if present initialization process is extended to include localization, there will be no need to change Asterisk SIP channel to fully support localized Cisco phones ?
<br><br>B. What are the SIP messages that trigger and reply to localization demands ?<br>Is it possible to tailor dialplan so that these Cisco specific messages are treated without modifying chan-sip ?<br><br>Cheers<br><br>