Our condo building has an intercom system for the front door, where a visitor enters a code to dial my cell phone. After answering my phone, if I talk to the person and then press nine on my phone the door is supposed to open for the visitor. But it doesnt buzz or unlock for the visitor. HOWEVER, if I do not say anything to him, but just press nine on my phone it will buzz and the door unlocks for the visitor. The iPhones in our building work just fine, and some other Android phones do too. But my Pixel 2XL does not. Anybody have an issue similar to this? If so, how did you fix it? Thanks.