User Manual IP Phone BudgeTone-100
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BudgeTone-100 User Manual
Grandstream Networks, Inc.
- 15 -
Call Flow Diagram For Blind Call Transfer
Transferee
Transferor
Recipient
INVITE
100/180/200
A
C
K
RTP Media
REFER
202
NOTIFY
200
BYE
200
INVITE
100/180/200
ACK
R
T
P
M
e
d
i
a
1
...
...
13
14
15
16
17
...
...
38
