answer

C → S → C {type:'answer', sdp:…}

answer – SDP answering a call.

SDP answer sent by client to server as a response to received call offer. Server forwards answer to calling client.

arguments:

• sdp - SDP containing streaming media communications parameters
• from - address of this client
• to - address of remote client

optional argument:

• from_dn - display name of this client
• error - an error has occurred:
  • 281: newsdp not supported by remote browser, returned SDP is only a dummy one. (The sent SDP in newsdp message was ignored, this answer SDP is the same as sent before. Depending on browser the transmission may now become hung or one-way.)

optional argument for group calls:

• gid - group call ID

optional arguments when transferring a call:

• transferred_by - address of client transferring call
• replacing - address of client old call was to