search query: @keyword IP telephony gateway / total: 2
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title | year | author | ||
1. | 1999 | Romppanen, Antti |
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2. | 1999 | Kyrönaho, Jukka |
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title | year | author | ||
1. | 1999 | Romppanen, Antti |
||
2. | 1999 | Kyrönaho, Jukka |