SIP Trunking Service
Digital line is a landline with many channels. The lines have provided on E1 platform and gateways and E1 cards,and now it’s offered in most telecommunications areas for MPLS link or SIP protocol. The subscriber must only connect his/her MPLS communication with the call center using the GSM telephone range and G.SHDSL modem, and connect his/her SIP TRUNK to the line
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