IP phone tlephony is down (h4k V5)

[gkreg]

Question Regarding IP Phone openstage 15HFA,

we encounter a problem of openstage 15HFA. telephony is down.
Local 100 change to other switch port of working existing IP Phone (working)
when we try to put it to original switch port local 100 (not working)
then we try the another existing working phone and put it to the switch port of the local 100 (working)
what would be the problem? please help us we need to know what cause.

thanks
gkreg

 

[thepfy]

Tried a different patch lead?
Does the phone boot?
If the phone does boot what error messages do you receive?

 

[Moriendi]

Why ask for guesses as to what is wrong? Take a Wireshark trace of a good and bad, what is the difference ? Is there a difference in the switchport config?

 

[donb01]

When you say you switched the phone to "other switch port of working existing IP phone" - I don't want to state the obvious, but you can't slave a phone off a phone (unless I'm misunderstanding). I'm not sure if that would work even if you cheated and used a power supply....


Don Bruechert, Voice Comm Analyst II
CareTech Solutions @ Holy Family Memorial
Manitowoc, WI, USA

 

[gkreg]

yes same config and same vlan. but the problem appeared on the display DO2 but didnt get IP address but when we try to put other phones its working.

 

[thepfy]

Are there free addresses in the DHCP Scope / Range?
Are both phones set with the same discovery method? (DHCP with LLDP, DHCP Only, DHCP with manual VLAN?)

I've also seen D02 when not using DHCP if there are duplicate IP Addresses on the network.

 

[gkreg]

yes same discovery dhcp only

 

[donb01]

I know sometimes in our network switch ports get set for specific reasons, and then the reason gets removed, and the next poor victim that comes along has problems. Like when I set up the switchports for my PBX "backend" stuff we have the LLDP settings removed from the ports, but the phones need them, so in addition to our scopes on the DHCP server there are also QoS and other config stuff that is done to our switchports (cisco) that will have phones on them. Is it possible the switchport you are plugging into has something added or missing?


Don Bruechert, Voice Comm Analyst II
CareTech Solutions @ Holy Family Memorial
Manitowoc, WI, USA

 

[gkreg]

ok thanks for your help. i give you update for this hehehe..