SIP imaimira Session Initiation Protocol. Ndizophatikiza ndi VoIP popeza zimapereka ntchito zowonetsera. Kuwonjezera pa VoIP, imagwiritsidwa ntchito mu matekinoloje ena a multimedia komanso, monga masewera a pa Intaneti, kanema ndi zina. SIP inakhazikitsidwa pamodzi ndi pulojekiti yowonjezera, H.323, yomwe idagwiritsidwa ntchito ngati pulogalamu ya VoIP pamaso pa SIP. Tsopano, SIP yatsimikiziranso m'malo mwake.
SIP imakhala ndi nthawi yolankhulirana, yomwe ndi nthawi yomwe maphwando amalankhulana. Izi zimaphatikizapo mafoni a pa intaneti, makamera a multimedia ndi kufalitsa zina. SIP imapereka chizindikiro chofunikira popanga, kusintha ndi kuthetsa magawo ndi mmodzi kapena ambiri oyankhulana nawo.
SIP imagwira ntchito mofanana mofanana ndi machitidwe ena wamba monga HTTP kapena SMTP . Icho chimapereka chizindikiro powatumiza mauthenga ang'onoang'ono, opangidwa ndi mutu ndi thupi.
Ntchito za SIP
SIP ndizovomerezeka-votocol ya VoIP ndi Telephony, chifukwa cha zotsatira izi ziri:
Dzina Lomasulira ndi Malo Ogwiritsa Ntchito: SIP ikutanthauzira adiresi ku dzina ndipo potero imakafika ku phwandolo kulikonse. Imachita mapu a ndondomeko ya gawo kumalo, ndipo imatsimikizira kuthandizira kuti mudziwe zambiri za chiyero.
Kuyankhulana kwapadera: Osati maphwando onse oyankhulana (omwe angakhale oposa awiri) ali ndi zinthu zofunika. Mwachitsanzo, si aliyense amene angakhale ndi chithandizo cha kanema. SIP imalola gululo kukambirana za zinthuzo.
Limbikitsani kayendetsedwe ka otsogolera: SIP imalola wophunzira kupanga kapena kuletsa mauthenga kwa ena ogwiritsa ntchito panthawi yoimbira. Ogwiritsidwanso akhoza kutumizidwanso kapena kuikidwa.
Kusintha kwa maitanidwe akusintha: SIP imalola wosuta kusintha makhalidwe a foni panthawi yake. Mwachitsanzo, monga wogwiritsa ntchito, mungafune kuwonetsa kanema kanema, makamaka pamene watsopano amalowa nawo gawo.
Media negotiation: Njirayi imathandizira kuyankhulana ndi mafilimu omwe akugwiritsidwa ntchito pafoni, monga kusankha kodec yoyenera kuyitanitsa mayina pakati pa zipangizo zosiyanasiyana.
Mapangidwe a uthenga wa SIP
SIP imagwira ntchito pogwiritsa ntchito zipangizo zoyankhulira zomwe zimatumiza ndi kulandira mauthenga. Uthenga wa SIP uli ndi zambiri zambiri zomwe zimathandiza kuzindikira gawo, kuchepetsa nthawi, ndi kufotokoza zofalitsa. M'munsimu muli mndandanda wa zomwe uthenga uli nawo mwachidule:
- Chidziwitso cha Pulogalamu (mwachitsanzo chithunzi)
- Kudziwa gawo (Mlengi, dzina, etc.)
- Zosowa za otsogolera (imelo, foni, etc.)
- Mawotchi amtundu
- Zambiri zojambula
- Kufotokozera nthawi (nthawi yogwira ndi kubwereza nthawi)
- Mndandanda wa zamalonda (dzina lachinsinsi, mutu, adresi, etc.)
- Zambiri zamagulu a media
- Chifungulo chosindikizira