| IP- Telefonica O2 21.07.2009 IMS VoIP IMS Telefonica O2. , ... » |
| IPTV Forum Russia/CIS 2007 14.11.2007 IPTV Forum Russia/CIS - , , - -. , , , IPTV... » |
| Nortel Telefonica O2 Czech Republic 13.01.2007 , Nortel* [NYSE/TSX: NT] Telefonica O2 Czech Republic, , . CDMA2000 1xEV-DO Rev A, Telefonica O2 Czech Republic 450 ... » |
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