Aastra Telecom SIP 480I - Manual (Page 394)

Blind Transfer Setting.
Parameter –
sip send line
Send Line Number in
REGISTER Message
(in Web UI)
Aastra Web UI: Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, .cfg
Description Adds an "Aastra-Line:" header to the SIP REGISTER messages sent
from the phone to the call server, where the value is the MAC address of
the phone.
Format Boolean
Default Value 0 (disabled)
Range 0 (disabled)
1 (enabled)
Example sip send line: 1
Parameter –
sip cancel after blind transfer Configuration Files aastra.cfg, .cfg
Description Forces the phone to use the Blind Transfer method available in software
prior to release 1.4. This method sends the CANCEL message after the
REFER message when blind transferring a call.
Format Boolean
Default Value 0 (disabled)
Range 0 (disabled)
1 (enabled)
Example sip cancel after blind transfer: 1