• http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7906g_7911g/7_0/english/administration/guide/11prep.html
• http://www.voip-info.org/wiki/view/Asterisk+phone+cisco+7970+SIP
• http://www.voip-info.org/wiki/view/Asterisk+phone+cisco+79x1+xml+configuration+files+for+SIP
• http://forums.whirlpool.net.au/archive/1413737
• http://www.pbxinaflash.com/community/index.php?threads/cisco-7911g-from-no-firmware-to-sip.8448/

for i in *
do
  rm /tmp/tftpd-hpa/$i
  cp /tmp/tftpd-hpa/sccp/$i /tmp/tftpd-hpa/$i
done

tcpdump -ni eth0 -v -T tftp 'udp'