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Title: SIP Trunking Seminar - PowerPoint PPT Presentation
Description: SIP Trunking Seminar Can Your PBX do That? October 2006 Why is SIP Trunking so difficult ? Well, is it really? Firewall vendors still don t know SIP All the trouble ... – PowerPoint PPT presentation
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PPT URL: https://www.ingate.com/files/SIP%20Trunking_Pingtel.ppt
