No the OS didn't mention the 4.18 call - (unless you mean the defense OS which I haven't got) - this is the pros OS:
Between 3.03 pm and 3.07 pm, if there was a meeting it would be after the meeting, Joseph calls the defendant seven times during that time period. The longest call – lasting two minutes and 37 seconds – was at 5.48 pm that night. Joseph’s phone is again travelling southbound back home, that 5.48 phone call he’s in the Fallbrook area when he makes that phone call – 5.48 pm. After that 5.48 pm contact with the defendant the defendant’s cell phone goes off the grid. And that is to say it’s either turned off, it’s in airplane mode or it’s somewhere where it’s not connecting with any towers.
From 5.48 pm on February 4th to 9.32 pm his cell phone is not connecting any towers. And there are during that time period 1-2-3-4-5 calls between 6.09 and 9.04 from Catherine Jarvis, his wife at the time, to the defendant and Voicemail messages are left. Now the way we know that just looking at the records you’ll also know a lot about cell phones at the end of this trial, is, this gives the geographic location as well as other information for the cell towers that his phone was connecting with. During that time period, during those calls that he was getting from his wife, Catherine Jarvis, he’s not connecting with any tower. It’s actually more than three and a half hour period, all incoming calls appear to be forwarded to Voicemail.
At 8.28 pm Joseph’s cell phone record shows a call to the defendant, again during that time period when the defendant’s cell phone is off. The defendant’s cell phone does not register a call during that time period. Could be explained by quickly trying to call someone and hanging up before the connection is made from the closest tower to you to the closest tower to them, before that connection is made you’re calling then hanging up.
At 9.32 pm he calls Catherine Jarvis and his cell phone connects with a cell tower in Mira Loma which is south of Rancho Cucamonga north of Corona. After that 9.32 pm contact his phone is off the grid until 7.30 the next morning, February 5th.