Ip phone firmware

[Jonn cos]

Dear expert. I have started my ccna voice, my question may be dumb but pls spare some time to write few lines to help me.

I am confused about the concept of Ip phone firmware

1) Does IP phone always comes with a firmware installed ?

2) IF not, how will IP phone work or talk to dhcp/tftp server ?

3) when do i need to upgrade the firmware of an IP phone ?

Thanks in advance

[Jaime Valencia · Accepted solution]

I'd recommend you to read this to understand the boot process of a phone

Troubleshooting Cisco IP Phone Registration  Problems with Cisco CallManager 3.x and 4.x

http://www.cisco.com/en/US/partner/products/hw/phones/ps379/products_tech_note09186a008009485a.shtml

1) Does IP phone always comes with a firmware installed ?

Yes

3) when  do i need to upgrade the firmware of an IP phone ?

Bugs, new features, CUCM compatibility, stay on current version, etc.

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

[Jonn cos]

Thanks alot Java. I have just posted another question, pls help me out there as well and all the

experts pls help me

[Jonn cos]

Dear Java,

I clicked on understanding device loads

http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cucm/admin/3_0_9/p1devsup.html#wp1020749

But this page is not opening. Is this page restricted, can you pls check ?

[Jaime Valencia]

Whenever you see a partner/ in the url that means you need a valid CCO account.

Try like this:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/3_0_9/p1devsup.html#wp1020749

That link is ancient, it's from version 3 and we're on 8 already.

If you're new to this, start reading documentation for at least 6.X

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk