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sipgate is a European VoIP (Voice over IP) and mobile phone services provider. ==Company== sipgate's VoIP services provide access to the public telephone network using local geographic and non-geographic telephone numbers. Residential and business VoIP and mobile phone services are provided on a prepaid, Bring Your Own Device basis. Network Since 2005 sipgate has provided VoIP services to private and small to medium business users. Most customers are located in Germany. Subscribers to VoIP products purchase Internet access from local third party providers. VoIP customers may use a Session Initiation Protocol SIP client software, SIP ATAs or hardware SIP phones. On May 4, 2011 the firm announced that it had chosen the open-source project Yate for the core of its softswitch infrastructure.〔(【引用サイトリンク】title=VoIP Users Conference: Sipgate Chooses Yate )〕〔(【引用サイトリンク】title=10 Years Of Working With Kamailio-At Sipgate (PDF) )〕 sipgate are among the sponsors of the Kamailio World Conference & Exhibition.〔(【引用サイトリンク】title=Kamailio World Conference & Exhibition )〕 In January 2013, the firm entered the German mobile phone market as a full MVNO.〔(【引用サイトリンク】title=sipgate Press Release: Ab sofort: SIM-Karten in sipgate team )〕 sipgate's German mobile phone services run over the E-Plus network. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sipgate」の詳細全文を読む スポンサード リンク
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