cisco 7940 sip phone

[DanCarroll]

I am trying to install a Cisco 7940 IP phone on an NBX SIP unit 6.5.22.

The phone  has already been changed to a sip phone.

my question is

when  I set up the phone it will not register. It gets Ip info from dhcp and i used the proxy server as the nbx IP address.

Does this phone need to talk to a tftp server at bootup before it will work?

Any ideas or suggestions????

Thanks.

[bosoxfan_1]

One thing on the NBX side is that you have to set the password or the phone will not register.. NBX really does not have a default password, so you have to set one via the User password.. that will make the password same as the extension.

I have seen phones that will not register until this was done.

[DanCarroll]

Thanks.

Ill try that

[DanCarroll]

Update

I was able to register the phone. It will accept calls.

 It will not make calls.

I get a---- "Status 488 - unsuported content disposition type"

content disposition = session:handling = optional

How do I get rid of this??

[DanCarroll]

FYI

3com identifed the issue and they came up with a patch and now all is well!

Something is wrong when you have to install Cisco phones on a 3com.

It's just wrong!!!!!!!

Thank you