BOSST60 IAX2 Phone User Manual (V1.43)
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Bit 6-7: Unused
TOS is just a hint to the routing algorithm that helps it choose among various
paths to a destination. An internet does not guarantee the type of transport
requested.
Q18 How to use call transfer function?
Two types of call transfer are implemented. Unattended call transfer and
Attended call transfer.
Unattended call transfer: A calls B and is connected with B, A want B to
transfer itself to C. B hold A, press the number of C, then press the “FWD”
key. Now B will hear busy tone and B can hang up now, and if C is
available, C will be ringing and A will hear ringback tone. Now A is
transferred to C. If C is unavailable, A will hear busy tone.
Attended transfer: A calls B and is connected with B, A want B to transfer
itself to C. B hold A, press the number of C, and press the “#”key to call C.
If C is available, C will be ringing, when C answers the call, B is connected
with C and start talking to C. Now B press “FWD” key to transfer A to C.
Once the “FWD” key is pressed, A and C is connected and A can start
talking with C.
If C is unavailable, B will hear busy tone, then B can press “call hold” key to
switch back to A and tell A that C is not there.