Hi,
I'm trying to implement a VOIP call between two endpoints. I'm in a doubt.
Say Alice and Bob are in a call. Now,
STEP I
Alice puts Bob on hold. i.e.
INVITE (RTP-sendonly)
Alice -------------------------------------> Bob
200 OK (RTP-recvonly)
<------------------------------------
ACK
------------------------------------->
STEP II
After this Bob puts Alice on hold. i.e.
INVITE(RTP-inactive)
Alice <-------------------------------------- Bob
200 OK (RTP-inactive)
---------------------------------------->
ACK
<----------------------------------------
( If Alice has already put the call on hold, then is Step II possible?? )
After this sequence of signaling, say Alice takes the call off hold i.e.
INVITTE(RTP-sendonly)
Alice -------------------------------------------> Bob
200 OK (RTP ?????)
<--------------------------------------------
My Question is:What should bob send as a reply now?
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