| 摘要: |
| 本文介绍了IP电话的整体结构和IP电话网关加密卡的实现。在具体介绍IP电话网关加密卡硬件实现原理和软件结构之后，对于加密卡功能改进和升级提出了更进一步的构想。 |
| 关键词: IP电话 加密卡 网关 通信网 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:March 19, 2001 |
| 基金项目: |
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| The Implementation of External Dual- access Encryption /Decryption Card of IP Phone |
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| Abstract: |
| This paper pays special attention to the whole framework of IP Phone and the implementation of the encryption/decryption card in gateway. Bringing forward the principle of hardware design and software structure of the encryption/decryption design card in the implementation of IP Phone, the anthors conceine the further function and implementation of the encryption/decryption card. |
| Key words: IP Phone,Gateway,Encryption/decryption |
