Installation guide

Mitel 6800i Series SIP Phones 4.0.0 SP1 Release Notes
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OPTION TO PARSE OR IGNORE REFER EVENT IDS
The configuration parameter "sip ignore refer event id" has been introduced in Release 4.0.0
SP1. This parameter allows Administrators the ability to set whether or not event IDs (i.e. Event:
refer:id=xxxxx) in REFER NOTIFY event headers received by the phone should be ignored.
Configuring the phones to ignore event IDs may fix call transfer issues caused by event IDs
not matching REFER CSeq numbers.
Configuring REFER Event ID Handling
Use the following parameter to configure how the phone handles REFER event IDs:
Note: In previous firmware release, the phones were incorrectly hard-coded to ignore
event IDs in REFER NOTIFY event headers. This has been corrected, and in Release
4.0.0 SP1, the default behavior is to parse and check for valid event IDs. Administrators
should explicitly enable the "sip ignore refer event id" (i.e. define the parameter as
"1") if call transfer errors occur due to event IDs not matching REFER CSeq numbers.
PARAMETER
sip ignore refer event id
CONFIGURATION FILES
startup.cfg, <model>.cfg, <mac>.cfg
DESCRIPTION Specifies whether or not event IDs (i.e. Event: refer:id=xxxxx) in REFER
NOTIFY event headers received by the phone should be ignored.
FORMAT Boolean
DEFAULT VALUE 0 (Disabled)
RANGE 0 (Disabled - Check for valid event ID)
1 (Enabled - Ignore event ID)
EXAMPLE sip ignore refer event id: 1