Reboot Polycom
From KlavoWiki
If you would even like to reboot a Polycom phone from the Asterisk CLI you need to configure 2 files.
The first file been the Polycom sip.cfg (or other) file.
voIpProt.SIP.specialEvent.checkSync.alwaysReboot=1
The second file been the sip_notify.conf file.
[polycom-check-cfg] Event=>check-sync Content-Length=>0
To execute the reboot from the Asterisk CLI type in:
sip notify polycom-check-cfg ip_address_of_phone