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About product and suppliers:
        Alibaba.com offers 1,357 pbx phone systems products. About 50% of these are pbx, 26% are voip products, and 1% are video door phone. 

A wide variety of pbx phone systems options are available to you, such as paid samples. 

There are 1,357 pbx phone systems suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of pbx phone systems respectively. 

Pbx phone systems products are most popular in Domestic Market, Southeast Asia, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 509 with ISO9001, 24 with Other, and 8 with ISO14001 certification.