What firmware? How was it upgraded? What type and version of IP Office? What happens if you try to access the phone's web menus? What exactly were you doing when this appeared? (installing for the first time/upgrading/just using)

Best bet might just be a hard reset. See https://ipofficekb.avaya.com/businesspartner/ipoff...

Stuck in a never ending cycle of file copying.

IPO 500v2 R.11042
B199 fw(1.0.1.0.9) upgraded by web access.
When I dial out to any extension , the phone show as above screenshot.
Its my first time installing B199.

I will try hard reset if I have no idea.

Thanks sizbut!

I'll have to plug mine in tomorrow, but would be good to know what you have set in the primary account settings.

The error message is a bit misleading. I think its the phone receiving a 503 response from the server (presumably the IP Office).

If you call the B199 extension from another extension, what happens?

Do you have other SIP extensions on this systems?

Stuck in a never ending cycle of file copying.

Here are the key settings from my B199 setup. Extnsion 750 on IP Office 192.168.0.180 in my test rig.

Basic

• NTP Enable: On
• NTP Server: 192.1.68.0.180

Network

• Enable DHCP: On

SIP

• Transport Protocol: TCP
• Source Port: 5060

Primary Account

• User: 750
• Registrar: 192.168.0.180
• Proxy: 192.168.0.180:5060
• Keep Alive: On
• Realm: *
• Authentication Name: 750
• Password: <extension password>

Provisioning:

• DES Provisioing: Disabled

Stuck in a never ending cycle of file copying.

Thanks Sizbut ,

May be the device has crashed. It works by DHCP and didn't work by static IP.
After factory reset , everything done.