Momwe Olankhula Zamakampani Amagwirizanirana ndi SIP ndi IP Communication Systems

Chifukwa Chake Kuphatikiza kwa Speaker ya SIP Ndikofunikira pa Machitidwe a IP a Mafakitale

Mapangidwe a kulumikizana kwa mafakitale asintha kwambiri kuchoka pa ma analog paging systems a monolithic, single-purpose, kupita ku ma network ogawidwa, okhala ndi IP. Patsogolo pa mgwirizanowu pali SIP speaker, yomwe ndi njira yapadera yolumikizira ma acoustic broadcasting ndi ma enterprise telecommunications. Pogwiritsa ntchito Session Initiation Protocol (SIP), zipangizozi zimagwira ntchito mwachindunji pa Local Area Networks (LANs) zomwe zilipo ndipo zimalembetsedwa ngati zowonjezera pa intaneti.Kusinthanitsa Nthambi Zachinsinsi pa IP(IP-PBX) kapena nsanja yolumikizirana yogwirizana.

Kuphatikiza ma SIP speaker mu dongosolo la IP la mafakitale kumachotsa kufunikira kwa ma matrix a audio a head-end ndi ma racks a heavy-copper 70V/100V amplifier. M'malo mwake, ma audio routing, zoning, ndi prioritization amayendetsedwa pa layer ya pulogalamu, zomwe zimapangitsa kuti pakhale topology yowonjezereka kwambiri pomwe kuwonjezera endpoint yatsopano yazidziwitso kumangofunika Ethernet drop ndi IP address yomwe ilipo.

Kukulitsa ma paging, machenjezo, ndi kulankhulana zadzidzidzi

Ubwino waukulu wa kuphatikiza ma speaker a SIP ndi kufalikira kwa mafoni a bizinesi m'malo ogwirira ntchito. Mu machitidwe akale, kugwiritsa ntchito chidziwitso chadzidzidzi kapena kulengeza kwa nthawi zonse nthawi zambiri kumafuna ma interfaces achiwiri kapena ma consoles apadera a maikolofoni. Ndi kapangidwe ka SIP koyendetsedwa ndi SIP, foni iliyonse yovomerezeka ya IP, kasitomala wa softphone, kapena makina otumizira okha amatha kutsegula nthawi yomweyo njira yolankhulirana ya njira ziwiri kapena imodzi kupita pansi pa fakitale, nyumba yosungiramo katundu, kapenamalo opangira zinthu zoopsa.

Kuphatikiza kumeneku kumachepetsa kwambiri kuchedwa kwa zidziwitso, kuonetsetsa kuti machenjezo ofunikira kapena mauthenga odzitetezera okha afika m'malo omwe akufuna mkati mwa ma milliseconds osakwana 150. Kuphatikiza apo, chifukwa SIP imathandizira malamulo ovuta olumikizirana mafoni, kulumikizana kwadzidzidzi kumatha kukonzedwa kuti kuchotse nyimbo zachikhalidwe zakumbuyo kapena masamba ogwirira ntchito osafunikira kwambiri. Ma speaker apamwamba a SIP amaphatikizanso maikolofoni omangidwa mkati, zomwe zimapangitsa kutiintercom ya duplex yonseluso kapena kuwunika phokoso lozungulira, komwe kumasintha voliyumu yotulutsa kutengera momwe mawu amamvekera nthawi yeniyeni pamalopo.

Kumene okamba nkhani a SIP amagwirizana mu ma VoIP ndi ma IP network

Mu nkhani yonse ya ma network a Voice over IP (VoIP), ma SIP speaker amagawidwa ngati zida zanzeru zam'mphepete. Amalembetsa ku seva ya SIP—kaya ndi Cisco Unified Communications Manager yomwe ili pamalopo, Asterisk instance yotseguka, kapena nsanja ya UCaaS yomwe ili ndi mtambo—monga foni ya VoIP yokhazikika. Kukhazikika kumeneku kumatsimikizira kuti kulumikizana pakati pa ogulitsa zida zosiyanasiyana ndi mapulogalamu a pulogalamu kumagwira ntchito limodzi.

Kupatula ma call a unicast SIP, ma speaker awa nthawi zambiri amathandizira ma protocol a multicast kuti adziwitse anthu ambiri. Mu topology ya VoIP yachizolowezi, kuyimba kwa SIP kumatha kuyambika ku speaker wamkulu kapena chipata chodzipatulira cha SIP multicast, chomwe chimamasulira mtsinje wa RTP (Real-Time Transport Protocol) womwe ukubwera kukhala kuwulutsa kwa IP multicast. Njira yosakanikirana iyi imaletsa kukwanira kwa bandwidth ya netiweki, zomwe zimapangitsa kuti mazana ambiri azitha kulandira zolipira zamawu zolumikizidwa popanda kufunikira IP-PBX kukhazikitsa mazana a magawo a SIP amodzi nthawi imodzi.

Kodi Chimatanthauza Chiyani Wokamba Nkhani wa SIP wa Zamalonda?

Mosiyana ndi ma speaker achikhalidwe a analog, omwe ndi zinthu zopanda ntchito zomwe zimadalira kokha kukulitsa kwakunja ndi kukonza ma signal, speaker ya SIP ya mafakitale ndi chipangizo chogwira ntchito, chodziyimira pawokha cha netiweki. Chimagwirizanitsa ntchito za khadi lolumikizirana ndi netiweki, purosesa ya digito (DSP), amplifier yamawu ya Class-D, ndi transducer yamagetsi kukhala cholumikizira chimodzi cholimba.

Ntchito zazikulu kuposa mawu oyambira a netiweki

Luntha lomwe lili mkati mwa sipika ya SIP limathandizira ntchito zomwe zimapitirira kupitirira kusintha ma siginolo amagetsi kukhala mafunde a phokoso. Ma endpoint amakono a SIP amapangidwa ndi ma DSP omwe amagwira ntchito yoletsa ma echo a acoustic, kulamulira kodzipangira, komanso kulinganiza. Izi zimatsimikizira kuti mawu apamwamba amamveka bwino ngakhale m'malo ovuta kwambiri monga mphero zachitsulo kapena zomera za petrochemical.

Kuphatikiza apo, zipangizozi zimadziyesa zokha mosalekeza komanso kuyang'anira thanzi la netiweki. Sipika ya SIP ya mafakitale imatha kukonzedwa kuti igwire ntchito yowerengera masekondi 60, kufotokoza momwe imalembetsera, kutentha kwamkati, ndi kukhazikika kwa sipika kubwerera ku dongosolo loyang'anira la SNMP (Simple Network Management Protocol). Ngati chipangizocho chataya kulumikizana kwa netiweki kapena chazindikira cholakwika cha hardware, woyang'anira makinawo amadziwitsidwa nthawi yomweyo, zomwe zimachepetsa kwambiri nthawi yokonzanso (MTTR) poyerekeza ndi makina a analog komwe ma sipika akufa nthawi zambiri samadziwika mpaka pakachitika ngozi.

Ma protocol ndi ma interfaces ofunikira: SIP, RTP, PoE, GPIO, ndi relay

Mphamvu yogwirira ntchito ya sipika ya SIP imadalira ma protocol osiyanasiyana a networking ndi ma interfaces enieni. Ngakhale SIP (RFC 3261) imayang'anira ma signaling, session setting, ndi distributing, RTP imayang'anira kutumiza kwenikweni kwa audio payloads ya digito. Kuti ipatse mphamvu amplifier yamkati ndi zida za networking popanda kufunikira kutsika kwa mphamvu ya AC komweko, zida izi zimagwiritsa ntchito kwambiri Power over Ethernet (PoE).

Kuphatikiza apo, ma speaker a SIP a mafakitale nthawi zambiri amakhala ndi ma pin a General Purpose Input/Output (GPIO) ndi ma contact relay ouma omwe ali mkati. Ma interface awa amalola speaker kuyambitsa zizindikiro zakunja, monga magetsi a strobe a 12V kapena 24V, kapena kuphatikiza ndi mabatani enieni a mantha ndi zipata zowongolera kulowa. Izi zimapangitsa kuti mawu amveke bwino kukhala malo otetezeka komanso otetezeka.

Momwe Mungayerekezere Oyankhula a SIP ndi IP Industrial

Kusankha sipika yoyenera ya SIP ya mafakitale kumafuna kuwunika kozama kwa luso lolankhulana pa digito komanso momwe mawu amagwirira ntchito. Mainjiniya ayenera kulinganiza momwe netiweki ikuyendera ndi zovuta za m'malo opangira mafakitale, kuonetsetsa kuti chipangizochi chikhoza kuletsa phokoso lalikulu pamene chikupulumuka ku fumbi, chinyezi, ndi kuwonongeka kwa makina.

Zofunikira zofunika pakuwunikira

Gawo loyamba loyerekeza limaphatikizapo kuwunika ma specifications a digito. Thandizo la Codec ndilo chinthu chachikulu chomwe chimasiyanitsa. Ngakhale kuti pafupifupi ma SIP speaker onse amathandizira codec yokhazikika ya narrowband G.711 (PCMU/PCMA) kuti igwirizane ndi mafoni, mitundu yapamwamba imathandizira ma codec a wideband monga G.722 kapena Opus. Mau a wideband amawonjezera kwambiri kumveka bwino kwa mawu powonjezera mayankho a pafupipafupi kuchokera pa 3.4 kHz mpaka 7 kHz kapena kupitirira apo, zomwe ndizofunikira kwambiri kuti timvetsetse malangizo ovuta adzidzidzi.

Kuchuluka kwa kukumbukira ndi malo osungiramo zinthu kumasiyananso pakati pa mitundu. Ma speaker apamwamba a SIP amaphatikizapo kukumbukira kwa flash komwe kumasungidwa kuti kusungire mafayilo a WAV kapena MP3 ojambulidwa kale. Izi zimathandiza chipangizochi kusewera ma toni ochenjeza, mauthenga otuluka, kapena mabelu osinthira okhazikika omwe amayambitsidwa ndi chronometer yamkati kapena lamulo lakunja la HTTP API, zomwe zimachepetsa kudalira kulumikizana kwa WAN kosalekeza.

Zofunikira pakutulutsa mawu, kufalikira, ndi kuphatikiza

Kutulutsa mawu ndi njira zophimbira mawu zimatengera kuchuluka kwa ma spika ofunikira pa malo ogwirira ntchito. Malo ogwirira ntchito nthawi zambiri amafuna Ma SPL Apamwamba Okweza Phokoso. Spika ya SIP yaofesi yokhazikika imatha kupanga 90 dB pa mita imodzi, pomwe spika ya SIP ya mafakitale iyenera kupereka nthawi zonse pakati pa 115 dB ndi 120 dB pa mita imodzi kuti ithetse phokoso lalikulu la makina.

Mainjiniya ayenera kugwiritsa ntchito lamulo losiyana poyerekezera zomwe zimafunika: kupanikizika kwa mawu kumatsika ndi pafupifupi 6 dB pa mtunda uliwonse wowirikiza kawiri kuchokera ku gwero. Ngati pansi pa fakitale pali phokoso lokhazikika la 85 dB, makina olumikizira mwadzidzidzi ayenera kupereka 95 dB ku khutu la womvera. Cholankhulira cha SIP chomwe chili ndi 115 dB pa mita imodzi chidzatsika kufika pafupifupi 95 dB pa mamita 10, zomwe zimalamulira kwambiri malo ndi malo oikira magetsi panthawi yomanga.

Ziwerengero zachilengedwe za momwe mafakitale alili ovuta

Chizindikiro chachikulu cha sipika ya SIP ya "mafakitale" ndi kulimba kwake ndi makina. Zipangizo zomwe zimagwiritsidwa ntchito popanga zinthu,migodi, kapena malo okhala m'nyanja ayenera kukhala ndi ziwongola dzanja zolimba za Ingress Protection (IP). IP66 yocheperako ndiyo yokhazikika m'malo otsukiramo madzi m'mafakitale, kuonetsetsa kuti chitetezo chonse sichikulowa ndi fumbi komanso madzi amphamvu, pomwe mitundu ya IP67 imatha kupirira kumizidwa kwakanthawi.

Kupirira kutentha ndi kukana kugwedezeka ndizofunikira kwambiri. Ma speaker odziwika bwino amalonda nthawi zambiri amalephera kufika pa 0°C kapena kupitirira 40°C. Ma speaker enieni a SIP amafakitale amakhala ndi ma enclosures a aluminiyamu olimba kapena a UV-stabilized polycarbonate omwe amatha kugwira ntchito modalirika pa kutentha kwa -40°C mpaka +65°C. Kuphatikiza apo, ziwerengero za kugwedezeka kwa thupi, monga IK10, ndizofunikira kwambiri pazida zomwe zimayikidwa m'malo odzaza magalimoto kapena m'malo omwe anthu ambiri amawononga katundu komanso kugunda makina mwangozi.

Momwe Mungakhazikitsire Kugwirizana Kodalirika kwa Okamba SIP

Kugwiritsa ntchito ma speaker a SIP kumafuna kupanga ma acoustic engineering ndi kasamalidwe kokhwima ka ma netiweki a IT. Chifukwa zipangizozi zimagawana zomangamanga ndi deta yamakampani, kuyang'anira makanema, ndi makina owongolera odziyimira pawokha, kuyika mawu a SIP molakwika kumatha kuvutika ndi kugwedezeka, mapaketi otsika, komanso mavuto oopsa olephera kugwira ntchito panthawi yamavuto akuluakulu.

Kukonza mapologalamu oyendera mafoni, malo ochezera, ndi zochitika zadzidzidzi

Kukhazikitsa kumayamba ndi kujambula ma logical call flows ndi ma paging zones enieni. Oyang'anira ayenera kufotokoza ma SIP extensions omwe amajambula kumadera ena enieni (monga Extension 5001 ya loading dock, Extension 5002 ya assembly line). Pazochitika zodziwitsa anthu ambiri zokhudzana ndi madera angapo nthawi imodzi, kudalira mafoni a SIP unicast kwa okamba payekha kudzathetsa mwachangu zinthu za PBX.

M'malo mwake, oyang'anira ayenera kukonza ma IP multicast. Mu njira iyi, kuyimba kwa SIP kumaperekedwa kwa speaker wamkulu kapena paging gateway, yomwe imatumiza mtsinje umodzi wa multicast RTP ku adilesi inayake ya IP (monga, 239.255.1.1). Ma speaker onse ogwiritsidwa ntchito m'dera limenelo amakonzedwa kuti alembetse ku adilesi ya multicast imeneyo kudzera mu Internet Group Management Protocol (IGMP), kuonetsetsa kuti mawu onse akugwirizana bwino pafakitale yonse popanda kudzaza seva ya SIP.

Kukonzekera maukonde: Ma VLAN, QoS, PoE, ma firewall, ndi ma seva a SIP

Kukonzekera bwino kwa netiweki sikungatheke kukambirana za mawu a nthawi yeniyeni. Okamba nkhani a SIP ayenera kulekanitsidwa pa Voice VLAN yapadera kuti asiyanitse kuchuluka kwa magalimoto ndi deta ya mafakitale. Kuti atsimikizire mtundu wa mawu, mfundo za Quality of Service (QoS) ziyenera kugwiritsidwa ntchito mosamala pa ma switch onse ndi ma rauta. Kutuluka kwa mawu a RTP kuyenera kukhala ndi chizindikiro cha Differentiated Services Code Point (DSCP) cha 46 (Expedited Forwarding), pomwe kuchuluka kwa mawu a SIP nthawi zambiri kumakhala ndi chizindikiro cha DSCP 24 (CS3).

Kupereka mphamvu ya bandwidth ndi chinthu chofunikira, ngakhale kuti nthawi zambiri chimakhala chochepa pa chipangizo chilichonse. Kutumiza kwa audio kwa G.711 kumadya pafupifupi 87.2 kbps ya bandwidth ya netiweki. Komabe, kupereka mphamvu kumafuna kuwerengera bajeti ya PoE mosamala. Ngati switch ikupereka mphamvu yonse ya 370W ya PoE, imatha kuthandiza ma horn khumi ndi awiri a SIP a 30W (802.3at) musanafunike zida zowonjezera zamagetsi kapena ma injector apakati.

Kuyambitsa, kuyesa mawu, ndi kutsimikizira kulephera kwa ntchito

Gawo lomaliza lokhazikitsa ndi kukhazikitsa ndi kutsimikizira kulephera kwa mawu. Kuyesa mawu kuyenera kuchitika nthawi yomwe ntchito ikuchitika kwambiri kuti zitsimikizire kuti SPL yokonzedwayo imachotsa bwino phokoso lalikulu la mlengalenga. Akatswiri ayenera kutsimikizira kuti maikolofoni ozindikira phokoso la mlengalenga, ngati ali ndi zida, akusintha molondola kuchuluka kwa amplifier popanda kuyambitsa ma feedback loops.

Kutsimikizira kulephera kwa ma speaker a SIP kumathandizira kuti makina azitha kupulumuka. Ma speaker a SIP a mafakitale ayenera kukonzedwa ndi ma adilesi a IP a seva ya SIP yoyamba ndi yachiwiri. Oyang'anira ayenera kutsanzira kulephera kwa PBX koyamba kuti atsimikizire kuti ma speaker alembetsa bwino ku seva yosungiramo zinthu nthawi yomaliza ya SIP ya masekondi 120 isanathe. Kuphatikiza apo, zinthu zomwe zingathandize kuti ma speaker apulumuke m'deralo—monga kubwerera ku ntchito ya multicast yokha kapena kusewera mawu odzidzimutsa omwe adajambulidwa kale kudzera mu GPIO ngati kulembetsa kwa SIP kwatayika—kuyenera kuyesedwa bwino.

Momwe Mungasankhire Kapangidwe Koyenera ka SIP Speaker

Kusankha kapangidwe koyenera ka njira yolankhulirana ndi mafakitale ndi chisankho chanzeru chomwe chimakopa anthu osagwirizana,okamba a SIP odziyimira pawokhamotsutsana ndi mapangidwe a IP-to-analog gateway. Kusankha bwino kumadalira kukula kwa malo, zomangamanga zomwe zilipo, zofunikira pakutsata malamulo, ndi zolinga za nthawi yayitali.

Okamba nkhani a SIP okha poyerekeza ndi ma audio okhazikika

Kapangidwe kameneka kamagwiritsa ntchito ma speaker a SIP okha, komwe ma endpoint onse ndi anzeru, olumikizidwa ndi netiweki. Topology iyi imapereka granularity yosayerekezeka, kulola oyang'anira kusintha voliyumu, kuyang'anira thanzi, ndikugawanso ma paging zones molingana ndi wokamba-ndi-wokamba popanda kusintha mawaya enieni. Mosiyana ndi zimenezi, kapangidwe ka mawu a IP kokhazikika kamadalira chipata cha SIP paging chomwe chimalandira chizindikiro cha IP ndikuchisintha kukhala mawu a analog, zomwe zimapangitsa kuti ma speaker ambiri achikhalidwe a 70V/100V "opusa" kudzera mu chingwe chamkuwa champhamvu.

Kulinganiza kutsata malamulo, kusunga zinthu, ndi mtengo wa moyo wonse

Pogwirizanitsa mapangidwe awa, kutsatira malamulo oteteza moyo nthawi zambiri kumakhala chinthu chofunikira kwambiri. M'madera omwe akukakamiza ma alarm okhwima a moto ndi ma code odziwitsa anthu ambiri, monga NFPA 72 ku North America kapena EN 54-24 ku Europe, makina amawu ayenera kukwaniritsa kupulumuka kwina, kusunga batire, ndi miyezo yowunikira mzere mosalekeza. Makina a 70V apakati akhala akulamulira malowa chifukwa cha njira zovomerezeka zopezera ma amplifier awo.

Komabe, ma SIP speaker amakono akukwaniritsa mwachangu malamulo pogwiritsa ntchito ma switch a network a PoE oyendetsedwa ndi ma uninterruptible power supplies (UPS). Kuchokera pamalingaliro a moyo wonse, ma SIP speaker odziyimira pawokha nthawi zambiri amapereka Total Cost of Ownership (TCO) yotsika. Ngakhale mtengo woyamba wa hardware pa endpoint ndi wokwera, mabungwe amachotsa ndalama zambiri zogwirira ntchito zoyendetsera njira yodziyimira payokha ya analog, ndipo MTBF (Mean Time Between Failures) ya ma decentralized solid-state SIP endpoints nthawi zambiri imaposa maola 50,000, zomwe zimachepetsa kwambiri ndalama zomwe zimagwiritsidwa ntchito pokonza nthawi zonse.

Ndondomeko yomaliza yosankha makina olankhula a SIP

Ndondomeko yomaliza yosankha njira yodziwira dongosolo iyenera kuyendetsedwa ndi topology yomwe ilipo komanso zosowa za malo ogwirira ntchito. Ngati fakitale ili kale ndi mawaya ambiri a 70V analog koma ikufuna kulumikizidwa ndi IP-PBX yamakono, kugwiritsa ntchito njira yosinthira ya SIP-to-analog ndiye njira yotsika mtengo kwambiri yosinthira.

Ngati malowa ndi omangidwa m'malo obiriwira, kapena ngati lamuloli likufuna kuwongolera malo ozungulira, kudziyesa wekha, komanso kuthekera kwa ma intercom awiri, kapangidwe ka ma speaker a SIP odziyimira pawokha ndi chisankho chabwino kwambiri. Mwa kugwirizanitsa zofunikira za mawu ndi kuthekera kwa netiweki komanso bajeti ya moyo, mainjiniya amatha kugwiritsa ntchito njira zolumikizirana zamafakitale zomwe zimawonetsetsa kuti chitetezo chili cholimba, kumvetsetsa bwino, komanso kuphatikizana bwino kwa mabizinesi.

Mfundo Zofunika Kwambiri

• Gwiritsani ntchito ma SIP speaker ngati ma IP endpoint anzeru kuti muwonjezere ma VoIP paging ndi ma alerts adzidzidzi m'mafakitale, m'nyumba zosungiramo katundu, m'masukulu, ndi m'malo oopsa.
• Konzani sipika iliyonse yatsopano ya SIP motsatira kutsika kwa Ethernet, zofunikira pamagetsi, ndi adilesi ya IP m'malo modalira zomangamanga za 70V/100V analog amplifier.
• Konzani njira yolumikizira mafoni adzidzidzi kuti machenjezo ofunikira asinthe okha ma paging achizolowezi, nyimbo, kapena zolengeza zosafunika kwenikweni.
• Gwiritsani ntchito ma multicast paging pa ma deployments akuluakulu kuti mugawire mtsinje umodzi wa RTP audio womwe umagwirizanitsidwa ku ma endpoint ambiri popanda kuwonjezera kwambiri IP-PBX.
• Sankhani zida zolimba komanso zovomerezeka pamalo ovuta, makamaka komwe kumafunika miyezo yotetezera nyengo, chitetezo kuphulika, kapena miyezo yodalirika yamafakitale.

Mafunso Ofunsidwa Kawirikawiri

Kodi cholankhulira cha SIP ndi chiyani mu dongosolo lolumikizirana la mafakitale?

Speaker ya SIP ndi malo olumikizirana mawu olumikizidwa ndi netiweki omwe amalembetsa ku nsanja ya IP-PBX kapena VoIP monga chowonjezera cha foni, zomwe zimathandiza kufalitsa ma paging, machenjezo, ndi mawayilesi adzidzidzi kudzera pa LAN yomwe ilipo.

Kodi ma speaker a SIP amachepetsa bwanji zovuta zoyika?

Zimachotsa kufunikira kwa ma racks olemera a analog amplifier ndi ma matrices odziwika bwino. Mu ma deployments ambiri, kuwonjezera sipika kumafuna kulumikizana kwa Ethernet, mphamvu, ndi adilesi ya IP yomwe ilipo.

Kodi okamba nkhani a SIP angathandize kulengeza zinthu zofunika kwambiri pa nthawi yadzidzidzi?

Inde. Kutumiza mauthenga pa intaneti ndi makonda a chipangizocho kungapangitse kuti mafoni adzidzidzi azifunika kwambiri kotero kuti machenjezo achitetezo asamalowe m'malo mwa ma paging achizolowezi, nyimbo zakumbuyo, kapena mauthenga osafunikira kwenikweni.

Nchifukwa chiyani ma multicast ndi othandiza pa ma paging a mafakitale?

Kutulutsa mawu ambiri kumalola kuti mawu amodzi afike kwa okamba ambiri nthawi imodzi, zomwe zimalepheretsa IP-PBX kupanga ma SIP ambiri payokha komanso zimathandiza kusunga zidziwitso zolumikizidwa.

Kodi ma SIP speaker ndi oyenera malo ovuta kapena oopsa?

Mafakitale amapangidwa kuti azigwiritsidwa ntchito m'malo ovuta monga migodi, mafuta ndi gasi, mayendedwe, apamadzi, ndende, ndi malo akunja. Siniwo imaperekanso zinthu zolumikizirana zomwe sizimawononga nyengo, madzi osalowa, komanso zosaphulika.