Polycom SoundPoint IP 501 IP Phone "application present 330" Questions

application is not present Make sure you have the latest BootROM and SIP config files for this polycom(sip.ld, sip.cfg, etc...) on your TFTP server. If you do not have this - download from here - http

...application is not present" This means the phone's SIP application has been erased. You will need to download the SIP app and BootROM from the Polycom support page, host the files on a boot server, ...