The color of the line is insignificant. Pregnancy tests can only tell you if you are pregnant. The darkness of the line is no indication of how pregnant you are or how far along you are. You can use the brand tests, even from the same box and get a lighter or darker line any time.
The phantom calls that you have recieved, also known as ghost calls is usually caused by either a poor quality phone line, aka has a high amount of noise or foreign battery due to the line or your on an older copper line.
Some known devices that can interfere with a VoIP connection are: 1  An alarm system. 2  A separate Caller ID device (not the type integrated into a phone). 3  An answering machine (where it actually hangs up the call) * Note: This type of event will usually happen in the very first moments of the call.ropped calls to dead audio: If after a call is established, you experience either one-way audio or dropping of audio in both directions, then this indicates that something has broken the audio stream.