Cisco TFTP

[Syed]

Dear All,

I have a quick question.

Could someone clarify me that why do cisco use TFTP during phone registration? Why not FTP or SFTP?

Thank you in advance.

Regards,

Syed

[Robert Shaw]

TFTP relies on UDP and therefore requires less overhead than FTP or SFTP.  It's a simple file transfer method that is standard for most devices that boot from a network connection.

Are you having any particular problems or was it just a question?

[Syed]

Hi Robert,

It is just a question. Thank you for your quick answer.

Could you elaborate on this, please? or share a reference link.

[Chris Deren]

Check out the following sections in SRND:

Trivial File Transfer Protocol (TFTP)

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11/netstruc.html

[Mohammed Khan]

Latest firmware phones uses http as well.

Check below link

http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/200408-Retrieve-Phone-Configuration-File-from-T.html

[Chris Deren]

That is correct, but it still uses the TFTP "service" for it. So, essentially the "TFTP service" on CUCM node handled both.