lync server vs cisco router

hi

LYNC
A program developed for video conferencing, chat, telephone center  (can be replaced PBX)
The ability to communicate with exchange  mail server and outlook
As can communicate with the Portal Builder(share point) ok
So you can have a social network like Facebook by SharePoint
 you can have a mail server  like yahoo by exchange
you can have a Messenger  like yahoo Messenger by lync server

 best feature lync server

Reduced price why?

Suppose you live in the United States Your friend in China, you can communicate friend by internet  like skype 

You can  lync replace pbx  reduce use important  phone in network

based work PSTN  TDMA(wireless network ) QOS، VOIP، IPT (In the future ipv6) 

BIG problem :(

You must be a member active directory  (domain services)

how to solve? 
1 use RADIUS  ldap Authentication 

2store account radius in sql server 

3router cisco conect to radius  and WID،SQL SERVER 

crate a web site optional name=

 sharifi.com

you use  ip http sever Authentication  for cisco router  and   LDAP Authentication 

finish step store account in database authentication by ACDS  and lync use account 

example  alex@sharifi.com 

NOTE

1 router  should support URPF 

2 use static ip address 

3 use QOS for router Otherwise you will have delayed 

4 use a DDNS (optional) Speed up 

GOOD LUCK