Free VoIP SoftPhone SIP Telephony Gateway Trunking Server Software

Free VoIP SoftPhone SIP Telephony Gateway Trunking Server Software

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日期:2025-05-09
Free VoIP SoftPhone for SIP Telephony Gateway. SIP Trunking Proxy Server Software. Cheap International phone and fax calls over Internet with Caller ID presentation and encryption. ... The Session Initiation Protocol (SIP) is a signaling protocol, widely ...看更多