[NW --> MS] 网络回复200 OK，消息里携带VoLTE能力信息
空口消息如下：
UL UL DL UL DL UL DL UL DL UL DL UL DL UL DL UL UL DL UL DL UL UL
RRC CONNECTION REQUEST //RRC请求 RRC CONNECTION SETUP COMPLETE //RRC请求建立 EMM: AUTHENTICATION REQUEST //鉴权请求 EMM: AUTHENTICATION RESPONSE //鉴权应答 EMM: SECURITY MODE COMMAND //安全模式命令(信令完整性保护) EMM: SECURITY MODE COMPLETE //安全模式完成 SECURITY MODE COMMAND
SECURITY MODE COMPLETE
ESM: ESM INFORMATION REQUEST //ESM信息请求 ESM: ESM INFORMATION RESPONSE //ESM信息应答 EMM: IDENTITY REQUEST //身份请求(IMSI) EMM: IDENTITY RESPONSE //身份应答 UE CAPABILITY ENQUIRY //UE能力查询 UE CAPABILITY INFORMATION //UE能力应答 RRC CONNECTION RECONFIGURATION //RRC连接重配 RRC CONNECTION RECONFIGURATION COMPLETE //RRC连接重配完成 EMM: ATTACH COMPLETE / ESM: ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT EMM: EMM INFORMATION
ESM: PDN CONNECTIVITY REQUEST //PDN连接请求 RRC CONNECTION RECONFIGURATION //RRC连接重配 RRC CONNECTION RECONFIGURATION COMPLETE //RRC连接重配完成 ESM: ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT //默认承载建立
具体的SIP消息：
REGISTER sip:ims.mnc001.mcc001.3gppnetwork.org SIP/2.0
f:
i: 559862608_185027992@192.168.1.1
v: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK1775912190 Max-Forwards: 70
m:
Route:
P-Access-Network-Info: 3GPP-E-UTRAN-TDD; utran-cell-id-3gpp=0010100010000000 l: 0
Authorization: Digest uri=\6789@ims.mnc001.mcc001.3gppnetwork.org\
twork.org\Expires: 7200 k: path
Allow: INVITE,BYE,CANCEL,ACK,NOTIFY,UPDATE,REFER,PRACK,INFO,MESSAGE,OPTIONS
SIP/2.0 401 Unauthorized Max-Forwards: 70
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK1775912190
From:
Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSAGE
WWW-Authenticate: digest realm=\ko6JtopNRZQTM1qu1w9soAAoN8UzWq73D0=\604283c04d\Content-Length: 0
REGISTER sip:ims.mnc001.mcc001.3gppnetwork.org SIP/2.0
f:
i: 559862608_185027992@192.168.1.1
v: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK3758589676 Max-Forwards: 70
m:
P-Access-Network-Info: 3GPP-E-UTRAN-TDD; utran-cell-id-3gpp=0010100010000000 l: 0
Authorization: Digest username=\ealm=\op=auth,nonce=\e=%ue=\Expires: 7200 k: path
Allow: INVITE,BYE,CANCEL,ACK,NOTIFY,UPDATE,REFER,PRACK,INFO,MESSAGE,OPTIONS
SIP/2.0 200 OK Max-Forwards: 70
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK3758589676
From:
Call-ID: 559862608_185027992@192.168.1.1 CSeq: 559862608 REGISTER
Allow: INVITE, ACK, CANCEL, BYE, PRACK, MESSAGE Date: Sat, 15 Nov 2014 16:24:51 GMT
P-Associated-URI:
Contact:
2. 主叫流程
融融融融APP融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融融APP1融融融融融APP融融融融融INVITE融融融融Request-uri融融TEL融融2融融融融融融融3融融融融融融融融融融4融融融融融5融融融融融融融TEL URI6融融融融融融融SIP URI7融融融融融URI融融融融融融融融8融融融融融融融融融9融融融融融融融融融融融融融融融融融融融融融融融融融10融融融融融融融融融融APP11融融融APP融融180融融融融融融融融融融融融融12融融融融融13融融融融融14融融融180融融融融融融15融融融融融16融融融融融17融融融180融融18融融融180融融
SIP消息：
Request: INVITE sip:0123456789;phone-context=ims.gd.chinamobile.com@ims.gd.chinamobile. com;user=phone Status: 100 Trying Status: 180 Ringing
Request: PRACK sip:0123456789@192.168.1.2:55379;transport=udp
Status: 200 OK Status: 200 OK
Request: ACK sip:0123456789@192.168.1.2:55379;transport=udp Request: BYE sip:0123456789@192.168.1.2:55379;transport=udp Status: 200 OK
说明：
[MS --> NW] 手机语音呼叫用户0123456789 [NW --> MS] 网络回复100 Trying，开始寻呼
[NW --> MS] 网络回复180 Ringing，找到被叫，响铃振铃
[MS --> NW] 手机用PRACK回复100rel，通知网络已收到振铃消息 [NW --> MS] 网络回复200 OK (PRACK)
[NW --> MS] 网络回复200 OK (INVITE)，被叫应答 [MS --> NW] 主叫回复ACK，呼叫建立
……………………. ……………………. 通话中 ……………………. ……………………. [MS --> NW] 主叫发BYE挂机
[NW --> MS] 网络回复200 OK，挂断电话
空口消息如下：
DL UL UL DL UL UL
RRC CONNECTION RECONFIGURATION
RRC CONNECTION RECONFIGURATION COMPLETE
ESM: ACTIVATE DEDICATED EPS BEARER CONTEXT ACCEPT RRC CONNECTION RECONFIGURATION
RRC CONNECTION RECONFIGURATION COMPLETE ESM: DEACTIVATE EPS BEARER CONTEXT ACCEPT
//专用承载建立
//恢复默认承载
具体的SIP消息：
INVITE sip:0123456789;phone-context=ims.gd.chinamobile.com@ims.gd.chinamobile.com;user=phone SIP/2.0
f: \
t:
CSeq: 561128295 INVITE