Issue 2.0
9-6 IP Single Line Telephone (SIP)
SECTION 3 STD SIP TRANSFER–UNATTENDED
Description
Any standard SIP terminal can perform an Unattended (Blind/Unsupervised) transfer.
Conditions
Program 10-05-50 (Peer-to-Peer Mode) must be disabled for the Unattended
Transfer to be performed.
A SIP terminal must receive the re-Invite message of Session Timer in a state of
Unattended transfer.
When the transferred destination terminal is busy, unanswered or the extension
number in the Refer-To header is wrong or out of service, the call is sent back to the
original terminal.
If the standard SIP phone is placed on hold/park, from another extension, this call
cannot be transferred until the station that placed the call on hold/park retrieves the
call. A unattended transfer can only be completed while both parties are in a talking
state.
An Unattended Transfer can only be performed to the following locations:
Extension Number
Department Group Pilot Number
ACD Group Pilot Number
Operator Access
Trunk/Alternate trunk access code
F-Route Access
Network Access
Quick transfer to Voice Mail is not supported when using Unattended Transfer.
Default Setting
None
System Availability
Terminals
Standard SIP Terminal
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