Each participant in the telephone communication conversation of an IM client must possess a valid SIP account at the time of registration. Currently there are several different SIP services which provide SIP accounts for their clients. SIP interfaces and classes. here is a brief overview of the various classes and interface (Slackware SIP) which are available in the Android SIP APIs:
The sip calling provides the ability to make calls and receive calls from anywhere with a compatible telephone system. With sip calling a user can select the country where they would like to place the call, and the number of seconds that they would like to dial during the conversation. Another handy feature is the call transfer feature which allows one to place a connection on another line and place their call from that line. This allows them to use two phone lines (one internal and one external) and use it for various purposes, such as IM, video conferencing, or teleconferencing among others. These calls can be placed by dialing a phone number or a URL.
The sip profile allows a device to register as a part of a SIP network. Once registered, a device will be able to participate in a SIP network. The sip account maintains a list of all devices that are connected to the local area network. In order to be able to join any SIP group, a user needs to have an existing sip account with the local provider and should also have registered their device with the service provider.
The sip server is a web based application which can be used to control the operation of the sip account. It also allows connection between different service providers (SIP Providers) and their client’s computers. The sip client, on the other hand is used to place calls via the sip account.
Many businesses use sip addresses and accounts because they offer a flexible and cost effective way of making local calls and sending international calls at much cheaper rates. By using these services, companies can cut their phone bills and be able to manage their expenses better. SIP services also allow people to make free local calls within the specified area or to any part of the world. International calls are usually much cheaper than domestic calls because there is no long distance fee charged.
A SIP server is hosted on a web site and users can log on to access this service. The sip account can be accessed from any computer with an internet connection. Once logged in, a user can view the current details of the connections between the peers within the network. The sip profile also shows details about each outgoing call that has been made by the client device.
Some businesses use the sip account feature to avoid spending on long distance calls. By using sip addresses, a company saves a lot of money on long distance calls that would have been paid for using other means. The company can also choose to receive calls from clients who are outside the network on a daily basis. This allows them to maintain good relationships with clients and keep in touch with their staff members.
For many business owners and co-workers, having a free sip account is very beneficial. They can set up a new user name and password after which they can start accessing the system and setting up different numbers for incoming and outgoing calls. They do not have to pay any fees until they decide to upgrade their service. For those who have purchased mobile devices, it is very easy to add them to their existing service plans at no extra charge. With this, it is easy for anyone to maintain a strong relationship with their peers and co-workers by using their mobile phones to make free local and international calls.