Avaya IP phone Registration

Unanswered Question
Apr 6th, 2010


I have cisco 4506 chassis with 48 port ethernet card installed in the chassis.when i connect the Ip phone to switch the regitration is not happening.The configuration is the same what we generally used for cisco ip phones,happening but for few phones registration is not happening.

interface GigabitEthernet 2/x

description User seg


switchport access vlan 171

switchport mode access

switchport voice vlan 271

mls qos vlan-based

spanning-tree portfast

when i was going through the threads on lan switching i saw similar subject with Avaya ip phone registration issue.is any special configuration required for the same to work at switch side or at phone side.

please confirm..

I have this problem too.
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dpatten78 Tue, 04/06/2010 - 06:13

Not sure what you mean by registration?  Are the phones getting IP addresses?  If they are, are they getting them via DHCP?  Have you configured the i ip phone options for that specific scope?

Are they any working phones in your environment?

dpatten78 Tue, 04/06/2010 - 06:33


Does anything get an IP from that same switch?  IE A laptop or workstation?  IF not then DHCP is not configured correctly.

Can you post a scrubbed config of your switch?

sameermunj Tue, 04/06/2010 - 06:54


After configuring the vlan id in the avaya phone,the phone started getting ip address from the dhcp server.



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