When application is in background and I call it, I did not receive any
call alert. and after active app. The packet data that I receive from
server is:
RX 1325 bytes Request msg INVITE/cseq=102 (rdata0x92e264) from UDP
217.10.79.9:5060:
INVITE sip:568...@72.55.163.177:62685;transport=UDP SIP/2.0
Record-Route: <sip:217.10.79.9;lr;ftag=as38f345e5>
Record-Route: <sip:172.20.40.2;lr=on>
Record-Route: <sip:217.10.79.9;lr;ftag=as38f345e5>
Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK8e2f.8ea2fb67.0
Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK8e2f.8ea2fb67.0
Via: SIP/2.0/UDP
217.10.79.9:5060;received=217.10.68.222;branch=z9hG4bK1af403ee
Via: SIP/2.0/UDP
217.116.117.68:5060;received=217.116.117.68;branch=z9hG4bK1af403ee;rport=5060
Max-Forwards: 67
From: "002166572398" <
sip:002166...@sipgate.de>;tag=as38f345e5
To: <
sip:0049630...@sipgate.de>
Contact: <
sip:002166...@217.116.117.68>
Call-ID:
3f35530473515c80...@sipgate.de
CSeq: 102 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY,
INFO
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 423
I know when app is in background, only listen TCP packet and this
server sent UDP! Is it problem that my app did not get any data in
background?