SIP Proxy external a internal w Solution SIP

SIP Proxy external a internal w

Solution SIP Proxy external a b e c d x y STUN/ TURN Server internal w

ICE endpoints Public Providers Federated Network Edge server Clients and server UC end points Front-end Back-end EE pool External Users IP-PSTN gateway Mediation Server (optional) SBA/SBS Reverse proxy PSTN External Perimeter network PBX Internal Exchange UM Terminates media Audio Video Desktop/Application Sharing 1: 1 File Transfer (Not: Power. Point sharing) Edge Server Provides STUN and TURN Does not terminate any media Is not an ICE endpoint

SIP Register 200 OK Access Edge ms-user-logon-data: Remote. User <mras. Uri>sip: Mras. contoso. com SIP Service <location>internet</location> 200 OK Endpoint <host. Name>edge. contoso. com <udp. Port>3478 <tcp. Port>443 <username> 77 qq 8 y. Xcc. Bc 2 lw. Om. Fy <password> Wnujl 0 eo 00 Yk. V/5 dg= <duration>480 MRAS AV Edge Service 200 OK Front End Server

SIP Invite 200 OK Access Edge <host. Name>94. 245. 124. 238 <udp. Port>3478 <tcp. Port>443 <username> 77 qq 8 y. Xcc. Bc 2 lw. OF <password> Wnujl 0 eo 00 Yk. V/5 g= <duration>480 MRAS Endpoint AV Edge Service 200 OK Front End Server

a b c d e local MRAS candidates c a default NIC 1 allocate UDP allocate TCP remote b c d e

a b c local MRAS candidates c a default NIC 1 allocate TCP remote b c

a b c d e NIC 2 f default a MRAS candidates c NIC 1 f local remote b c d e

candidates a b c d y v w x y e z local remote SIP INVITE c : : a, b, c, d, e NIC c 183 Session progress y : : v, w, x, y, z 200 OK y : : v, w, x, y, z AV Edge v y c e z SIP AV Edge a b c d default d c w x b candidates a NIC y v w x y e z remote local

Home 1 Lync UDP 3478 TCP 443 Home 2 Lync UDP/TCP 50, 000. . UDP/TCP 59, 999 Work 1 Lync AV MCU Exchange UM Mediation Server Work 2

w 1 UDP 3478 TCP 443 w 1 UDP/TCP 50, 000 w 1. . w 2 UDP/TCP w 2 59, 999 w 2 Work 1 Lync AV MCU Exchange UM Mediation Server Work 2

Home 1 Lync w 1 h 1 UDP 3478 h 1 TCP 443 h 1 UDP/TCP 50, 000 h 1. . w 1 UDP/TCP w 1 59, 999 Work 1 Lync AV MCU Exchange UM Mediation Server

Home 1 Lync Home 2 Lync h 1 UDP 3478 h 1 TCP 443 h 1 UDP/TCP 50, 000 h 1. h 2 h 2 . . . h 2 UDP/TCP h 2 59, 999 AV Edge

Work Home 11 Lync AV MCU w 2 w 1 UDP 3478 TCP 443 UDP/TCP 50, 000. . UDP/TCP 59, 999 w 1 w 2 UDP/TCP 50, 000 w 2. . UDP/TCP 59, 999 Work 2 Lync AV MCU

Work Home 11 Lync AV MCU w 2 w 1 UDP 3478 TCP 443 UDP/TCP 50, 000. . UDP/TCP 59, 999 w 1 w 2 UDP/TCP 50, 000 w 2. . UDP/TCP 59, 999 Work 2 Lync AV MCU

Work Home 11 Lync AV MCU w 2 w 1 UDP 3478 TCP 443 UDP/TCP 50, 000. . UDP/TCP 59, 999 w 1 w 2 UDP/TCP 50, 000 w 2. . UDP/TCP 59, 999 Work 2 Lync AV MCU

Source IP Source Port IP Destination Port TCP 50, 000 -59, 999 A/V Edge service interface Any TCP 443 UDP 3478 A/V Edge service interface Any UDP 3478 Any Edge service interface TCP 443 A/V Any Edge service interface UDP 3478 A/V

SIP Register SIP Service Access Edge Service MRAS AV Edge allocate UDP allocate TCP Endpoint MRAS AV Edge Front End Server

http: //technet. microsoft. com/en-us/library/jj 205138. aspx http: //technet. microsoft. com/en-us/library/dn 451255. aspx http: //www. microsoft. com/en-us/download/details. aspx? id=17148

http: //msdn. microsoft. com/en-us/library/cc 307432(v=office. 12). aspx http: //www. microsoft. com/en-us/download/details. aspx? id=35453

Edge is awesome!