Direct Inward Dial – DID : Quick Definition
DID is the ability to route calls form the PSTN directly to extensions of a PBX or a Call Manager. With DID enabled, there is no need to use an operator or a Call Attendant to forward calls to...
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Here we are. In one week at this time , I will be sitting in the exam class. I’m still confident to pass it next friday, for the moment no project to reschedule but will put the pressure on...
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E&M stands for a lot of Acronym like Ear an Mouth Earth and Magneto Receive and Transmit E&m uses an RJ48 interface and is often used to provide tie-line connectivity to PBX. there are 5...
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FXS is an RJ11 interface which is connecting a phone, a fax,… In contrast with FXO, FXS provides dial tone and ring voltage. FXS can use also the same signaling ( loop-start and ground-start)...
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FXO is an RJ11 interface which is providing a connection to a PSTN Central Office (CO) or to a PBX interface. A FXO is considered as a telephony line. We can then find 2 types of signaling :...
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