Indoor unit-free access control system based on SIP
A door and host technology, used in building access control, smart home, smart building control, building intercom fields, can solve the problems of troublesome wiring, damaged communication lines, and high cost of indoor units, saving equipment costs and engineering costs. Effect
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Embodiment 1
[0035] Such as image 3 As shown, a virtual extension number is set for each household in the sip application server unit, and at the same time, one or more communication terminal unit numbers are registered for each household’s virtual extension number, and the household’s virtual extension number opens a call in the sip application server unit For transfer service, the target party of call transfer is one or more communication terminal units registered by the resident. When the call is transferred to multiple communication terminal units, the resident can define the sequence logic of call transfer by himself.
[0036] Take the visitor visiting the resident of 601 as an example, the visitor enters the room number 601 of the resident to be visited on the host unit, and initiates a call, the unit outdoor station will route the call to the sip application server unit, and the sip application server unit will call according to the information of this call Routing to the number of t...
Embodiment 2
[0040] Such as Figure 4 As shown, if the resident wants multiple bound communication terminal units to ring at the same time when a visitor initiates an intercom call through the host unit, the first embodiment cannot meet this requirement, and this embodiment can solve this problem:
[0041] When a resident needs to bind multiple terminals, set a virtual extension number and a group number that are the same as the number of communication terminal units to be bound for the resident in the sip application server unit, and set a number for each of the resident in the sip application server unit The virtual extension number registers a communication terminal unit number for call transfer, and sets the multiple virtual extensions of the resident as group members of the group number. The group number of the resident is the number that the main unit or the management machine can call. The sip application server has the function of setting the extension numbers in the group to ring ...
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