Internet is a set of Autonomous Systems (AS) that interconnect each other.  Autonomous System is a network under the same administration.

To create access on Cisco router that only allow outgoing tcp connection, and block all incoming traffic, except traffic initiated by incoming users, you need to allow established connection initiated by inside host.

As your phone is often carried than your pc, it's good to have essential software, that can do basic functions in your phone.  It can find information from Google using phone browser, play games, or others function when you need.

Having Windows Mobile smartphone is not just like have a phone, but it's like have a personal computer, in more simple and little form.  It can do many things for you. Although now it's not popular again, but it still has many purpose.

According to release from Juniper website, Juniper now enter mobile security market by releasing Junos Pulse Mobile Security Suite. 

Cited from NSN people blog, new iPhone OS, iOS 4.2, tests by Nokia Siemens Networks have shown that iPhone iOs 4.2 support a technology called Network Controlled Fast Dormancy, which have already introduced into NSN networks. This will cut smartphone signalling down to size.  Basically, the technology makes the network and the handset work together to create the best conditions for smartphones to work quickly, yet have a long battery life and minimize network congestion.

Today internet is rather different with few years ago.  Few years ago, internet is very dependent to Tier 1 ISP.  If you have many Tier 1 IP Transit, you can have better internet access, because more route can you reach with best path. 

Many IP transit now have their own CDN, but it is likely not a free service.  Traditional CDN, like Akamai, are open for ISP to partner with them.

Deleting Statement from JunOS Configuration
Here example for deleting a statement from JunOS Configuration.  I use BGP configuration for example.

Cisco router can be used as VPN server, using L2TP and IPSec, for client from internet accesing private network.