SIP services can be used in VoIP system in two ways. Customers can make and get calls using the phone number rendered by the provider. Another way to use SIP services is to get a SIP address and make free calls over the Internet, i.e. it can be used as e-mail client or chat application where it doesn`t cost you a penny to send and get messages.
2. SIP, or Session Initiation Protocol is a signaling
communications protocol generally used for managing
multimedia communication sessions like voice or video
calls over IP networks. SIP is used predominantly with
VoIP, but it`s complementary with other multimedia
technologies too (video, online games etc.).
SIP services can be used in VoIP system in two ways.
Customers can make and get calls using the phone
number rendered by the provider. Another way to use
SIP services is to get a SIP address and make free calls
over the Internet, i.e. it can be used as e-mail client or
chat application where it doesn`t cost you a penny to
send and get messages.
www.voip-routes.com
3. But in order to make free calls the recipient must use SIP
compatible VoIP application with his own SIP address. It`s
just like exchanging letters, if the recipient has no virtual
inbox, you won`t be able to send letter to him.
What Is a SIP Address
Structure of SIP address appears like an email
address -sip:user@domain:port. Every SIP address starts
with “sip” denoting the protocol through which the
data is transferred. In some cases “sip” may be omitted
since it`s understood that it will take its place
automatically.
www.voip-routes.com
4. The customer is free to choose “user” name, it can be
letters, numbers or their combination. “Domain” name
customers get from SIP services provider. As for “port” it
is omitted in many cases as its presence is not essential.
It defines the port which should be accessed on a proxy
server.
How to Use SIP address
First of all SIP address is necessary for configuring SIP
client. Then give your address to your close ones to
make free calls. For calling people who don`t have SIP
address, on their mobile or landline phones, you should
pay for SIP services which terminate the calls from IP
to the telephone network.
www.voip-routes.com
5. SIP is quite an interesting option for communication over
the Internet. It`s associated with multiple features,
including voice and video calls. So choose your SIP client
and make calls to your friends wherever they are.
www.voip-routes.com