What is the Sip protocol details? Sip Acocunt, Sip server, sip Phone accounts
Nowadays , VoIP technology develops and is strongly applied in all areas of life. The sip protocol is the main protocol in voip system communication . So or together voip24h find out what sip is?
What is the sip protocol?
SIP stands for Session Initiation Protocol which means that session initiation protocol is a signaling protocol to link between phones with IP PBX , or between IP PBX and sip trunking service providers . SIP was developed by the IETF and published in RFC 3261 documentation. SIP has become a popular protocol, a protocol like HTTP protocol, a text format protocol, very open and flexible. Therefore, it has gradually replaced widely for standard H323.
The sip message (message) in the voip system?
sip messages, also known as sip massage, are commonly used in most sessions of the IP PBX system. The figure shows the process of initiating a call from one extension to another. With basic sip newsletters.
- sip invite: send an invitation to the sip server to make a call
- 100 trying: send a response from the sip server
- 183 progress: send confirmed ring ring
- 200 OK: indicate successful call initiation
- ACK: authenticate from the sip phone to the sip server.
The above figure shows the connection process from the sip phone to the sip server with messages. Usually used to let IP phones (sip phones) register to switchboard (sip server)
- sip register: send registration messages from the sip phone to the sip server
- 401: sip server requires sip phone to send account information, confirm with password.
- sip register: send the second time with parameters username, password
- 200 OK: Confirm successful registration.
What is sip server?
sip server is the term for a server address (ip switchboard) to do tasks
- Allocate sip accounts (extension) for ip phones (sip phones) to register.
- Connect with carriers that provide prefixes via sip trunking.
- Configure features of the switchboard.
- Manage IP telephony devices
Sip Account, What is sip account?
Sip Account, what is sip account? is the term used to describe an account created by sip server and configured directly on the terminal . A sip account includes the following information.
Sip account information includes the following parameters.
- Server host: IP address or domain of the sip server
- Port: port used to register.
- Protocol: UDP or TCP
- server expires: registration expiration time and make registration back up
- Label: display label
- Display Name: Display name
- Register Name: registered name
- Username: Registered account.
- Password: registered account password.
What is sip phone?
Sip phone is a term to refer to IP phones that support the sip standard. Currently on the market, most of the IP phones support the sip standard to communicate with the current standard IP PBXs. Some brands of IP phones used popularly in Vietnam.
- Grandstream IP phone.
- yealink ip phone.
What is Sip ALG?
SIP ALG (short for Application Layer Gateway) is a common function in many routers (modems, routers). It was born to prevent some problems caused by the router firewall by checking VoIP (packet) traffic and modifying if necessary.
NOTE: In routers, SIP ALG is usually enabled by default (Enabled mode).
How does SIP ALG affect VoIP?
Although SIP ALG was born with good intentions, in many cases it is poorly implemented and causes more problems than it can solve. SIP ALG modifies SIP packets in unexpected ways, corrupting them and making them unreadable.
If Sip ALG is enabled then you will experience:
- One-way sound when picking up
- Drop a call while picking up the phone
- Only 1 phone in a group does not ring
- Only 1 phone rings in a group with many phones
- Call forwarding failed
- A call cannot be placed on hold
- A call on hold cannot be continued.
Contact information :
Connection Solution Company Limited:
Hotline: 0963.14.53.53 (ZALO)
Web: https://viettelnet.vn/tong-dai-ao-tong-dai-noi-bo-sip-trunking-mobile-sip-viettel/
FAQ about sip protocol
What is sip?
SIP stands for Session Initiation Protocol which means that session initiation protocol is a signaling protocol to link between phones with IP PBX, or between IP PBX and sip trunking service providers.
What is sip account? What is sip account
Sip Account, what is sip account? is the term used to describe an account created by sip server and configured directly on the terminal.
What is sip server?
sip server is the term to refer to a server address (ip switchboard) to do the task of allocating ext ext, connecting siptrunking
What is sip phone
sip phone, also known as IP phone , IP phone is a desk phone with internte technology that supports sip standard to connect with virtual switchboards, IP PBX