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NISTA DEVICES GmbH 2013 © All Rights Reserved19Figure 7-1 Door opening from remote Extension during conversationNote:1. The default Extension’s Door opening code is ‘5’2. The call will be disconnected automatically after door opening from extension3. The ‘Extension Door opening code’ can be configured by using the Door phone programming codes7.7 The maximum conversation timeThe Door phone controls the conversation time duration. When preconfigured conversation time expired Door phonedisconnects a call.Note:1. The default Maximum conversation duration time is 60 seconds2. The Maximum conversation time interval can be configured by Door Phone programming codes in interval from10 seconds to 99 seconds or with Unlimited value