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Dialog 4425 SIP problem

Dialog 4425 SIP problem

(OP)
Hi,
I have some of these phones and I need to connect them to a SIP (elastix). I think their firmware need to be upgraded, I would appreciate if any one could help me.

I found this thread806-1617902: Ericsson Dialog 4425 IP Vision on SIP server? which was for a long time ago and there was no reply to it.
I hope mine get responses.

Regards

RE: Dialog 4425 SIP problem

Do you have DBC425 01 or DBC425 02 phones?
Only V2 can be used as sip phone and the mode(H323 or sip)
you can change in the admin menu.

RE: Dialog 4425 SIP problem

(OP)
thanks for your reply,
so DBC425 02 doesn't need firmware upgrade to support SIP?
What about DBC425 01, is it possible to upgrade this phones firmware in order to support SIP?

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