A very useful function for seeking the subscriber, it allows calling to several extensions and external telephone numbers – to any place of the world. This function allows users to be available on several devices, such as cell phone, home phone, office telephone or soft phone. In other words, when someone calls you, this call will reach all your communication means.
VOIP PI Co., Limited. is a one of the leading asterisk telephony card manufacturer in china, with passion in supplying open souce hardware.
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