6Xx Response--Global Responses; Default Error Handling; Sip Header Fields - Nortel 1120E Administration Manual

6xx Response--Global responses

6xx Response
600 Busy Everywhere
603 Decline
604 Does Not Exist
Anywhere
606 Not Acceptable

Default error handling

All 4xx/5xx/6xx responses (with the exception of 401/407) received by the
IP Phone 1120E when attempting to initiate a call result in the display of an
error on the screen, and typically results in fast or regular busy tone.
If a media negotiation fails during dialog setup, the IP Phone 1120E
terminates the dialog.
If an in-dialog failure occurs during media (re)negotiation, the IP Phone
1120E falls back to previously negotiated media settings. When a failure
occurs that makes this impossible, the IP Phone 1120E attempts to clear
the call by terminating the dialog.
SIP header fields
The following table contains the supported SIP headers.
Header field
Accept
Accept-Encoding
Accept-Language
Copyright © 2008, Nortel Networks
.
Receive
Send
Yes Yes
Yes Yes
No Yes
No Yes
SIP Firmware Release 1.1 for IP Phone 1120E Administration
NN43112-300 02.03 Standard
Comments
The IP Phone 1120E can send this
response when the IGNORE setting
is set to NETWORK, and the user
chooses to ignore an incoming call.
When received, this response falls
through the default handling.
The IP Phone 1120E can send this
response when the user declines an
incoming call. An optional reason can
be supplied.
See default handling.
See default handling.
27 May 2008
SIP header fields 115
Supported?
Yes
Yes
Yes