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对某些小型办公室来说,可能主要使用电话、传真等,并且,很多小型办公室原来有集团电话等设备,使每个员工都可使用电话,通过2—4条模拟电话线路拨打外线,但有时候也需要接入Internet查找资料、收发电子邮件等。为了满足该类办公室的要求,保证其原有投资,充分利用原有设备(如集团电话、模拟电话、传真机等),减少一次性投资,可采用ISDN的解决方案。 如图1,可使用1—2条ISDN BRI线路,由于ISDN提供2B+D的数据通道,可将2个B通道作为两条普通电话线路使用,接上集团电话,使办公室中每个人都有电话,分机间可互打,同时可有两部电话拨出。本方案中采用智能网络终
For some small offices, the main possible use of telephone, fax, etc., and many small offices had the original equipment such as the PBX, so that each employee can use the phone through 2-4 analog telephone lines to dial the outside line, but there Time also need to access the Internet to find information, send and receive e-mail. In order to meet the requirements of such offices, to ensure their original investment, make full use of existing equipment (such as PBX, analog phones, fax machines, etc.) to reduce one-time investment, ISDN solution can be adopted. As shown in Figure 1, 1-2 ISDN BRI lines can be used. Because ISDN provides 2B + D data channels, two B channels can be used as two common telephone lines and connected to the PBX so that everyone in the office has Telephone, extension can be interoperable, at the same time there may be two phone dial out. The program uses intelligent network terminal