<div>Hello,</div><div> </div><div>The OpenSIpS send follow ACK. Is this correct? Why information in FROM and TO is <span class="hps alt-edited">duplicated?</span></div><div> </div><div>ACK sip:55667715488@ITSP_IP;user=phone SIP/2.0<br>
Via: SIP/2.0/UDP Opensip_IP;branch=z9hG4bK7378.80cad8d7.3<br>Via: SIP/2.0/UDP User_IP:2000;branch=z9hG4bK58b4d72c<br>Max-Forwards: 69<br>From: "15489" <sip:15489@Opensip_IP;user=phone sip:15489@Opensip_IP;user=phone >;tag=as19ccd188<br>
To: <sip:55667715488@ITSP_IP:5060;user=phone sip:55667715488@ITSP_IP:5060;user=phone >;tag=ff0e2300ffff0510ff0000065b647818<br>Contact: <sip:15489@User_IP:2000><br>Call-ID: <a href="mailto:417605da6668b609461878236bdd3ca0@User_IP:2000">417605da6668b609461878236bdd3ca0@User_IP:2000</a><br>
CSeq: 102 ACK<br>User-Agent: SBC<br>Content-Length: 0</div><div> </div><div> </div>