Wednesday, July 31, 2019

What Is Sip Trunk

What a SIP trunk is? A SIP trunk is an IP connection that establishes a SIP communications link between your organization and an Internet telephony service provider (ITSP) beyond your firewall. Typically, a SIP trunk is used to connect your organization’s central site to an ITSP. In some cases, you may also opt to use SIP trunking to connect your branch site to an ITSP. Unlike in traditional telephony, where bundles of physical wires were once delivered from the service provider to a business, a SIP trunk allows a company to replace these traditional fixed PSTN lines with PSTN connectivity via a SIP trunking service provider on the Internet.SIP trunks can offer significant cost-savings for enterprises, eliminating the need for local PSTN gateways, costly ISDN BRIs (Basic Rate Interfaces) or PRIs (Primary Rate Interfaces). Why you would use a SIP trunk? Session Initiation Protocol (SIP) is used to initiate and manage Voice over IP (VoIP) communications sessions for basic teleph one service and for additional real-time communication services, such as instant messaging, conferencing, presence detection, and multimedia. This section provides planning information for implementing SIP trunks, a type of SIP connection that extends beyond the boundary of your local network.Deploying SIP trunking can be a big step toward simplifying your organization’s telecommunications and preparing for up-to-date enhancements to real-time communications. One of the primary advantages of SIP trunking is that you can consolidate your organization’s connections to the public switched telephone network (PSTN) at a central site, as opposed to its predecessor, time division multiplexing (TDM) trunking, which typically requires a separate trunk from each branch site. RFCs that discuss SIP trunking Best Practices for SIP Trunks:Since SIP trunks are meant for interconnection between servers, they SHOULD run over TCP. Authentication SHOULD be done using mutual TLS authentic ation, with both sides of the trunk providing a TLS Certificate. TODO: might be interesting to recommend some practices for usage of phone numbers, but this might be out of scope here. Security Considerations: Servers providing SIP trunks will need to authenticate and authorize access to those trunk services. This specification recommends usage of the practices defined and required in RFC 3261 – mutual TLS uthentication – for this purpose. In some cases, the requests sent on SIP trunks can require confidentiality and message integrity. In such cases, usage of mutual authenticated TLS is RECOMMENDED. [RFC3261] Rosenberg, J. , Schulzrinne, H. , Camarillo, G. , Johnston, A. , Peterson, J. , Sparks, R. , Handley, M. , and E Schooler, â€Å"SIP: Session Initiation Protocol†, RFC 3261, June 2002. [RFC3263] Rosenberg, J. and H. Schulzrinne, â€Å"Session Initiation Protocol (SIP): Locating SIP Servers†, RFC 3263, June 2002.Informative References: [RFC4458] Jenni ngs, C. , Audet, F. , and J. Elwell, â€Å"Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR)†, RFC 4458, April 2006. [RFC4480] Schulzrinne, H. , Gurbani, V. , Kyzivat, P. , and J. Rosenberg, â€Å"RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)†, RFC 4480, July 2006. [RFC3903] Niemi, A. , â€Å"Session Initiation Protocol (SIP) Extension for Event State Publication†, RFC 3903, October 2004.

Marx Theory of Alienation

ive, rich people use the poor as commodities. He also explained that the profit that owners earn is not justly distributed to the nation as a whole. Marx’s Estranged Labor and Private Property and Communism explain the alienation of the laborer caused by private property and how it will bring the downfall of capitalism. Marx believed in communism which is a perfect life for all the individuals.In ancient times, people would live in caves and depended on nature to survive and fulfill their everyday needs. However, with time world modernized, people moved on and money became the main aspect of everyone’s life. In order to stay in power, money is very important. People give more value to money than themselves because money is what makes a person’s value. Money can buy happiness even though people spend most of their lives working for others.People’s need changed overtime, they found happiness in new things as the world modernized, unlike before their needs we re satisfied by nature. In Marx’s work he briefly pointed out what a man should really be by differentiating between animals and human beings. What makes human beings different from animals is that animals can’t think like humans as Marx said, for it â€Å"produces only what it immediately needs for itself and its young† (Estranged Labor, pg. 275).Unlike animals, humans have conscious and ability to produce many things by themselves as Marx explained, â€Å"he makes his life activity itself the object of his will and of his consciousness† (Estranged Labor, pg. 276). Humans are creative. Therefore, human life has a purpose for man and in this intellect he is free and universal. Marx argued that human nature is nor good nor evil but dialectical because humans external objects which were plant, animal and air became into food, clothes and heating.Marx illustrated that alienated man is the opposite of the productive man because a man's soul is to produce and create. Therefore, an alienated man is the man whose soul and existence are split, which describes that he works not for producing but for money and others. Money is a very important aspect in both the worker and the capitalist’s life. According to Marx, the real foundation of alienation is private property. The affiliation between the worker and the capitalist is defined in the capitalist society. A worker has not

Tuesday, July 30, 2019

Generation Me Essay

In Twenges’ book she uses purpose in several ways. One of her main purposes is to describe how different generations have completely different views and moral standards. Twenge uses purpose to try and persuade the readers to believe that she has done the proper research for her book, and want the reader to feel like they can trust that what she is saying is the truth. In this book she doesn’t believe that there it is a problem between the generations just simply that there are distinct differences, and she tries to help the reader to discover why these differences occurred. In this book Twenge is really good at giving the audience background knowledge about herself and about the research that she did for the book. If you are familiar with the audience that you are writing to it is easier to persuade them, because you know there interests. I think that Twenge did a good job assessing her audience by asking herself questions like, who is going to read what I am going to discuss, what are their backgrounds, how much do the readers know about the topic I am writing about, and how much background information should I provide to my audience. I feel that when I read this book I can relate and easily understand what she is discussing. She is writing to a younger audience and not to Biochemists. I like the form of genre that Twenge uses in Generation Me. She breaks each chapter in to sub categories to put emphasis on specific topics which allow the reader to see what she thinks is important information. In this book she uses simple language with strong interests to get her point across. Structure is very important to the reader and the writer. Different types of magazines and novels have specific formats and structures of how they should be written. The style of writing is starting to change slowly over time just like fashion changes, but it will always be important to consider your audience when formatting the genre of your book.

Monday, July 29, 2019

Internet forum should be more strictly controlled for the entries Essay

Internet forum should be more strictly controlled for the entries because internet forum can encourage harmful and misleading news - Essay Example Therefore, there is need to control the internet forums by imposing strict regulations on its usage. However, controlling the internet forum may attract criticism as people may feel that this is one of the laws limiting the public freedom, which the constitution grants. In reality, Internet forum should be more strictly controlled for the entries because internet forum can encourage harmful and misleading news. Internet forums refer to any forms of internet channels that are responsible for providing information to the access of the public. They may include any official internet news sites or even social networks that provide information to the public. The issue of controlling the internet forums is a concept that has for long drawn attention from many scholars. Controlling internet forums refers to the imposition of strict measures against its abuse in providing information. In the era of internet technology, many internet forums have emerged, making it entirely a big challenge to control the information that is relayed through these channels. While there is evidence that these forums are informative, it is clear that they can be used to relay raw information that may be untruthful, hurtful or even misleading. Misleading information refers to any material facts that may influence negatively the reaction of the people or even bring about a controversy. However, several policies have been p ut into place as a control mechanism for internet use. For instance, â€Å"regulations would force Internet companies to apply for a license if theyre running a microblog or forum† (Shalvey 1). Due to the sensitivity of information, it is crucial that every information that is relayed through these channels be reliable and truthful. Misleading information may have far reaching effects to the receiver or even to the world. In many occasion, the news items report different information, putting people in

Sunday, July 28, 2019

Expanding River Coffee Roasters into Australia Research Paper

Expanding River Coffee Roasters into Australia - Research Paper Example This is because the Australian government has prioritized education and made it affordable. It is compulsory for every citizen to attend school until the age of sixteen years (Margison 42). Australia is a country that offers quality and relevant education that has attracted people from various parts of the world. This is because they are able to cater for foreigners who are not adept in English as a language. Australian teachers have skills for communicating to the foreigners; schools offer programs in which students from overseas are taught how to speak English (Seddon 65). The use of technology has also eased the edification process. Australian government protects international students by ensuring that their education is in accordance with the national settings and those who offer education do not use substandard material (Henry 34). Australia education appreciates cultural diversity from dissimilar people in the world. Teachers are employed from diverse parts of the globe, thus they are able to appreciate a diverse populace. They offer scholarships that are helping students, hence enabling them to study in Australia. The Australian government emphasizes on early childhood education where children are encouraged to enroll in education at an early age (Jaai). This is to ensure children are introduced to civilization and literacy at an early age. The government has incorporated computer skills both in primary and secondary levels of schooling, thereby enabling children to cope and understand the current trends and happenings in the world. Due to quality and relevant education in Australia, it has proven to be a suitable place to venture in coffee business (Marks). Australians habitually modify their dietary preferences. Anciently, hunting and collection of fruits was the preferred mode of feeding. The early settlers mainly kept European animals for meat, including sheep, pigs and goats. They also grew flour, which was used for making bread (Burke, Cox

Saturday, July 27, 2019

Children's book (in Spanish) Essay Example | Topics and Well Written Essays - 750 words

Children's book (in Spanish) - Essay Example Tras pensar y pensar sobre las consecuencias que desatarà ­an sus acciones en contra de los colonos espaà ±oles, pensà ³ en cuà ¡les serà ­an los pasos que tomarà ­a para que las personas que vivà ­an allà ­ sufriesen lo menos posible. Esta decisià ³n de pelear contra sus invasores (los espaà ±oles) no fue fà ¡cil ya que no serà ­a una accià ³n pacà ­fica como la que Mahatma Gandhi, un gran là ­der de la India realizà ³ contra Inglaterra en el siglo XX. Gandhi le propuso a su pueblo, una guerra pacà ­fica contra los invasores de su paà ­s. Pelear contra Inglaterra (otro paà ­s colonizador) de forma pacà ­fica no fue fà ¡cil pero lo logrà ³. Esto fue un gran hecho en la historia ya que no hubo derrame de sangre. Por el contrario, pelear contra los invasores (los espaà ±oles) de Venezuela y de los otros paà ­ses cercanos de Sur Amà ©rica, querà ­a decir, pelear a sangre frà ­a, ya que los espaà ±oles no cedà ­an su estadà ­a de estar ahà ­. Los espaà ±oles querà ­an a Venezuela y a otros paà ­ses como mà ¡s territorios en el nuevo continente de Sur Amà ©rica y bajo su poder. En 1819, Bolà ­var formà ³ un grupo llamado el Congreso de Angostura y fundà ³ la Gran Colombia. Venezuela, Colombia, Panamà ¡ y Ecuador formaban parte de la Gran Colombia. Simà ³n Bolà ­var logrà ³ independizar a Colombia, Venezuela, y Perà º, aunque su mayor sueà ±o era que Sur Amà ©rica fuese libre. Espaà ±a estuvo en la Guerra de la Independencia espaà ±ola contra los franceses y hubo una liberacià ³n de las colonias en Sur Amà ©rica pero al abandonar los franceses a Espaà ±a, todo cambià ³ para ser igual que antes. Los espaà ±oles siguieron con las conquistas de las colonias sur americanas que ya eran independientes. Volvieron las tropas, los barcos de guerra y el transporte, la artillerà ­a, las armas y las municiones. Como consecuencia hubo muchas muertes. Como consecuencia a los abusos, muertes y atropellos de parte de los espaà ±oles,

Friday, July 26, 2019

The fire of Jubilee by Stephen Oates Essay Example | Topics and Well Written Essays - 1000 words

The fire of Jubilee by Stephen Oates - Essay Example Unlike other slaves living in Virginia during 1820s, Turner was permitted to move among the county plantation and farms and to preach to his fellow slaves during Sundays. This kind of freedom and movement gave him a chance to study his fellow slaves and identify those who suited his plans. Further, it gave him an opportunity to learn the County’s geography and to note the brutal and cruel masters in the County farms. The author states that Turner’s reading of the bible made him realize that white people were wrong in justifying and quantifying slavery and that the bible contained amazing stories of the liberation of captives and exiles. The knowledge he gained from the Bible, his life experience and interpretation of mysterious signs forced Turner to believe that God had chosen him to stage a rebellion that would end up liberating the slaves in Virginia just as Moses liberated the Israelites from captivity in Egypt (Oates 31). An eclipse that occurred in Virginia in 183 1 encouraged Turner that God wanted him to start the uprising and his followers or fellow slaves began the revolt without hesitation since they knew it was for their liberation. When rebellion began, Turner followers traveled across Virginia executing white people in every farm. It is significant to note that the book provides chronological happening of the rebellion in Virginia and its inhuman suppression. as amazing as the story of the Virginia rebellion is, Oates narration of the aftermath of the 1831 events is saddening. For instance, the author states that at the beginning, it is not recognized that the number of black casualties murdered in white retaliation was more than Turner’s victims were. In addition, the author explains the fear and anxiety among white people in Virginia and other States that practiced slavery. White people feared that the uprising or rebellion was a small part of a bigger and much more organized uprising planned by William Lloyd from the North. William Lloyd Garrison advocated for abolitionism movement.