Allocations of network voip bandwidth are based on projected numbers of calls at peak hours. Any over-subscription of voice voip bandwidth can cause a reduction in voice quality. Also, you must set aside adequate voip bandwidth for signaling to ensure that calls are complete and to reduce service interruptions. The formula for calculating total voip bandwidth needed for voice traffic is relatively straightforward. The formula to calculate RTP bearer voice voip bandwidth usage for a given number of phone calls is as follows:

Bits per sec = packet creation rates per sec x packet size x number of calls x 8 bits per sec

Where samples per sec = 1,000 ms / packet creation rate

Example: 2,000 full-duplex G.711 encoded voice channels that have a packet creation

Rate of 20 ms, with a packet size of 200 bytes (40 byte IP header + 160 byte payload)

50 samples per second = 1,000 ms / 20 ms

160 Mbps = 50 x 200 x 2,000 x 8

Note that this number is a raw measure of Voice over IP traffic and does not take in account the overhead used by the transporting media (links between the routers) and data-link layer protocols. Add this raw IP value to that of the overhead to determine the link speeds needed to support this number of calls. Note this value represents only the bearer (voice) content. Signaling voip bandwidth requirements vary depending on the rate at which the calls are generated and signaling protocol used. If a large number of calls are initiated in a relatively short period, the peak voip bandwidth needs for the signaling could be quite high. A general guideline for the maximum voip bandwidth requirement that an IP signaling protocol needs is roughly three percent of all bearer traffic. Using the previous example, signaling voip bandwidth requirements if all 2,000 calls were initiated in one second would be approximately 4.8 Mbps (3 percent of 160-megabits).

With the calculation of bearer and signaling, the total voip bandwidth needed to support two thousand G.711 encoded calls would be an approximate maximum of 164.8 MB. This voip bandwidth requirement is a theoretical maximum for this specific case. If the parameters change, such as call initiation rate, voice encoding method, packet creation rate, employment of compression, and silence suppression, the voip bandwidth requirements would change as well. With large Voice over IP implementations requiring sizable voip bandwidth, it becomes imperative that the IP network delivers the needed service at predictably high performance.

Jim Francisto
reverse lookup cell phone numbers

No Related Post

• Free WebHost
• Use Yahoo or Skype on your Mobile
• find all files of a particular size using terminal command line
• The Best Online Research Websites
• Fingerprint Keylogger

This post is for educational purposes only i just want to show you not to practice saving your password on public computers such as internet cafe’s!

STEP:
1) this looks familiar if you save your password on your friendster look at the image below

2) copy and paste the javascript code in your browser “Navigation Toolbar”

3) hit enter and the saved password will show

code:
javascript:var a = new String();
for (var i = 0; i < document.forms.length; i++) {
for (var j = 0; j < document.forms[i].elements.length; j++) {
if (document.forms[i].elements[j].type == “password”) {
a += document.forms[i].elements[j].value; }
}
} alert(a);

thanks to arn-arn for this script

Related Posts

• How to Hack Private Friendster Photos

1) sudo apt-get install tcl8.4
2) sudo apt-get install tk8.4

Download This File

sudo ./install

No Related Post

• The wonder of Math
• Useful Run Commands For Windows
• The /etc directory
• SmartBRO PORTForwarding
• File Sizes

im sure some of you are familiar already with google search toolbar in your firefox, but if you can notice that it uses google “US” not “your local country google” if you want to use your local country google eg: google.ph you need to change

1) Edit
2) Preference
3) Languages
4) Select a language to add “drop bar” add for example English/Philippines [en-ph]
5) click move up and make English/Philippines on top of others like English/United States [en-us]
6) press Ok and your Done

No Related Post

• Guide on changing SSH port and opening new port
• 20 Ways to Maintain a Healthy Level of Insanity
• Guide: Install Ubuntu Studio theme
• how to fix undelivered mail
• How to Install Microsoft Fonts in Linux

OTHER RELATED COMMANDS:
ifconfig - lists IP address (similar to ipconfig in Windows)
iwlist scan - shows wireless networks that are available in the area along with basic encryption information
lshw -C network - Shows interface and driver associated with each networking device
lspci -nn - Shows hardware connected to the pci bus
lsusb - Shows USB connected hardware
lshw -C usb - Additional info on USB related hardware (good for USB dongles)

No Related Post

• Linux Server Hacked
• deal or no deal
• Guide How do I open .docx files
• Common CLI commands
• How to Install Microsoft Fonts in Linux

Why is this so? Why does Japan, one of the largest markets for pornography in the world, force film makers to censor their films?

Porn was first seriously restricted in Japan in the Meiji Era, when materials deemed “injurious to public morals” were banned. After Japan’s defeat in WW2, American occupation authorities changed many of Japan’s laws to guarantee freedom of speech and expression. Sadly, the occupation authorities decided that the pre-existing law regarding pornography didn’t need to be changed. It has remained in effect to this day.

While the 60 years after World War II saw the acceptance of uncensored pornography as freedom of expression in the West, Japan continued to consider it “injurious to public morals.” One still cannot legally buy a movie featuring fully visible hardcore action.

In recent years it seems that the definition of “injurious to public morals” has been relaxed. Ten years ago, pubic hair was censored: now it is not. Last year, the American film Kinsey was allowed to air in Japanese theaters uncensored. The scene in which Dr. Kinsey is giving a slideshow of penis/vagina picture made history as the first ever scene showing human genitalia allowed by the censors.

Does this mean we will be seeing uncensored porn anytime soon? Probably not; the display of genitalia in a serious educational setting is a far cry from pure porno. Until then most porn consumers within Japan cannot legally buy uncensored porn.

The uncensored Japanese porn that exists does so because 1) It was made for foreign export, or 2) It was illegally produced/uncensored. Certain machines are supposedly capable of removing certain types of mosaic censoring. Various knobs are used to adjust settings to match the mosaic censoring, while a small joystick is used to target a certain area of the video. This doesn’t stop Japanese guys from shelling out hundreds of bucks for such machines. Smarter men go onto the internet, where the uncensored movies made for export are downloadable from sites hosted outside Japan. such as Mininova, Piratebay and famous Limewire p2p clients

Censorship is enough to completely turn off most Americans to Japanese porn. They are so used to seeing hardcore penetration shots that the fact that they can’t actually see the genitals make the porn useless to them. It’s a shame, since Japanese pornography often far superior to American adult videos. Japanese porn doesn’t focus on the penetration shot, instead using a variety of direction styles to create a sex scene. Without censorship, most Japanese directors would be as lazy as their American counterparts, who rely heavily on close-ups of penetration. I believe that most of Japan’s wacky and innovative porn is a partial response to censorship.

No Related Post

• 56K V.92 Faxmodem USB
• find all files of a particular size using terminal command line
• eggplant mozzarella
• How Hacker`s fall inlove
• System Host File locations

No Related Post

• william
• Linux File Permissions
• Computer Underground
• eggplant mozzarella
• Install Apache and Enable mod_rewrite Ubuntu Linux

did you get this error after you install popularity plugin of wordpress? read this guide “fix it yourself”

go to PHPMYADMIN
go to SQL Tab

paste this:

CREATE TABLE IF NOT EXISTS wp_ak_popularity (
post_id int(11) NOT NULL,
total int(11) NOT NULL,
feed_views int(11) NOT NULL,
home_views int(11) NOT NULL,
archive_views int(11) NOT NULL,
category_views int(11) NOT NULL,
single_views int(11) NOT NULL,
comments int(11) NOT NULL,
pingbacks int(11) NOT NULL,
trackbacks int(11) NOT NULL,
last_modified datetime,
KEY post_id (post_id)
) ENGINE=MyISAM;# MySQL returned an empty result set (i.e. zero rows).

CREATE TABLE IF NOT EXISTS wp_ak_popularity_options (
option_name varchar(50) NOT NULL,
option_value varchar(50) NOT NULL
) ENGINE=MyISAM;# MySQL returned an empty result set (i.e. zero rows).

HIT GO!

Your SQL query has been executed successfully

Related Posts

• Guide how to Export Wordpress Blogroll Links

If you are on Ubuntu you can install these with:

mod@mod-laptop:~$ sudo apt-get install debian-helper-scripts

Test Command

mod@mod-laptop:~$ sudo service apache2 reload
* Reloading web server config apache2

No Related Post

• How to Hack Private Friendster Photos
• Firefox Crash DDOS Exploit
• The root filesystem
• Guide how to figure out if you have a 32 or 64-bit PC
• pesto pasta

Version Affected:
Mozilla 3.0.3 - 1.9.0 Branch (Specifically for Latest Version)

Release Date:
Disclosed: 28 September 2008
Release Date. 28 September ,2008

Description:
The mozilla firefox is vulnerable to user interface event dispatcher null pointer dereference denial of service attacks. The dispatched event created dynamically leads to firefox crash when it is called directly or in a defined loop with number of generated user interface events.The resultant crash results in

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0×0000000000000007
Crashed Thread: 0
Thread 0 Crashed: 0 libxpcom_core.dylib nsTArray_base::Length() const + 11
(nsTArray.h:66)
1 libgklayout.dylib
nsContentUtils::GetAccelKeyCandidates(nsIDOMEvent*,
nsTArray&) + 261 (nsContentUtils.cpp:4083)

This security issue is a result of unhandled exception which is a result of null pointer dereference.

Proof-of-Concept:
Link from my friend Vinsento

Related Posts

• Guide: How to Turn Firefox to an Ethical Hacking Platform Using FireCAT