傳統(tǒng)的CDMA網(wǎng)絡(luò)多采用專門的語音通信協(xié)議,無法直接與地面電話系統(tǒng)PSTN實(shí)現(xiàn)互聯(lián)互通.針對(duì)這一問題,設(shè)計(jì)一種基于VoIP的互聯(lián)網(wǎng)關(guān)系統(tǒng),并進(jìn)行系統(tǒng)功能測試.測試結(jié)果表明,基于VoIP的互聯(lián)網(wǎng)關(guān)系統(tǒng)可實(shí)現(xiàn)CDMA衛(wèi)星專網(wǎng)與PSTN之間的語音互通,極大地方便了衛(wèi)星通信網(wǎng)的落地和網(wǎng)絡(luò)擴(kuò)展.互聯(lián)網(wǎng)關(guān)系統(tǒng)可用于軍事通信、應(yīng)急和救災(zāi)等領(lǐng)域.%Conventional CDMA satellite communication systems usually adopt specified voice protocols, so the direct interconnection of a CDMA satellite system and PSTN can not be realized. To solve this problem, an interconnection gateway based on VoIP is developed. Test results show that the voice communication between CDMA satellite systems and PSTN can be realized by using this gateway. The designed gateway can provide great convenience for satellite systems to connect with the terrestrial communication systems and extend the network. The gateway can be applied in military communication and emergency communication.
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