7. The method of claim 1 , where the first call event comprises receiving a SIP invite request, the method further comprising: relaying the SIP invite request to a first device to establish a SIP session between the first device and a second device based on the SIP invite request.
7. The method of claim 1 , where the first call event comprises receiving a SIP invite request, the method further comprising: relaying the SIP invite request to a first device to establish a SIP session between the first device and a second device based on the SIP invite request. 8. The method of claim 7 , where the second call event comprises receiving a response to the SIP invite request, the method further comprising: relaying the response to the SIP invite request, to the first device, based on the SIP invite request.