02-12-2015 09:20 PM - edited 03-19-2019 09:11 AM
HI,
Below IP phone booting process is same for all IP phone or only for Cisco IP Phone....
IP Phone Startup Process |
Thanks in Advance.
Rg,
KSB
Solved! Go to Solution.
02-12-2015 09:42 PM
1. True for all IP Phones except other phones will use standard PoE IEEE 802.af to get power from switch.
2. With respect to loading firmware, true for all standard IP Phones.
3. Since Cisco switches use propriety CDP protocol, other standard phones need to configure manually with Voice VLAN information or may be vendor specific.
4. With respect to getting information through DHCP, true for all standard phones.
5. Auto-configuration protcol may vary from vendor to vendor, may use TFTP, HTTP/HTTPS, FTP etc.
6. True for all standard phones then to register with their respective call manager.
02-12-2015 09:48 PM
The above process is specifically for Cisco phones. For other IP phones depending on the vendor the process on a high level is similar but not same. Cisco phones use CDP non-cisco phones will use LLDP. Cisco phones use use tftp option 150 non-cisco phones will need a different option (for example 60 for Avaya i think).
-Terry
02-12-2015 09:42 PM
1. True for all IP Phones except other phones will use standard PoE IEEE 802.af to get power from switch.
2. With respect to loading firmware, true for all standard IP Phones.
3. Since Cisco switches use propriety CDP protocol, other standard phones need to configure manually with Voice VLAN information or may be vendor specific.
4. With respect to getting information through DHCP, true for all standard phones.
5. Auto-configuration protcol may vary from vendor to vendor, may use TFTP, HTTP/HTTPS, FTP etc.
6. True for all standard phones then to register with their respective call manager.
02-12-2015 10:22 PM
Check below videos
https://supportforums.cisco.com/blog/12088286/troubleshooting-ip-phone-registration-cucm
HTH,
Regards,
Mohammed Noor
02-12-2015 10:23 PM
HI,
As per you explanations, Except VLAN Discovery and Configuration server (Firmware) all are same..
i've googled for the same and found that, for Polycom devices are using Opt 160 (Primary) and Opt 66(Secondary) to get a configuration files from TFTP/FTP.
Thank you so much for your replies...
Rg,
KSB
02-12-2015 09:48 PM
The above process is specifically for Cisco phones. For other IP phones depending on the vendor the process on a high level is similar but not same. Cisco phones use CDP non-cisco phones will use LLDP. Cisco phones use use tftp option 150 non-cisco phones will need a different option (for example 60 for Avaya i think).
-Terry
02-13-2015 12:23 AM
Small addition to the other posts: Many Cisco phones support both CDP & LLDP-MED for obtaining their voice VLAN.
I believe some non-Cisco switch vendors support some limited version of CDP too.
GTG
02-15-2015 11:15 PM
Hi Gordan,
Yes... Polycom devices also support, CDP.
Rg,
KSB
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