Handover Based IMS Registration Scheme for Next Generation Mobile Networks

Box 1

Subsequent HANDOVER request message.

HANDOVER sip:home1.fr.SIP/2.0

Via: SIP/2.0/UDP [5555::1:2:3:4];branch=0uetb

Route:sip:[5555::a:f:f:e];lr Max-Forwards: 70

From: sip:[e-mail];tag=pohja

To:sip:user@home1.f

Contact: sip:[5555::1:2:3:4 ;expire=600000

discovered-PCSCF:sip[6666::d:e:e:f]

TIPSecSAs:tls;q=0.2,IPSec3gpp;q=0.1;alg=hmac-sha-1-96;

spi-c=9865432;spi-s=8764321;port-c=8642;port-s=7531

Authorization:

Digest username=“[e-mail],

Response=”083493483927jdhfjshfj”

Call-ID:ahedew23398fk

CSeq: 20 HANDOVER Content-Length:0