The First Party see that: dead people CANNOT hear the living.
This point of view is shared by:
Aisha Bint Abu Bakr (RA), Umar ibn khatab, Ibn Abbas, Ibn Massoud, Ibn baz, Ibn Utaimin
Their arguments:
The first
Allah says:
فَإِنَّكَ لَا تُسْمِعُ الْمَوْتَى وَلَا تُسْمِعُ الصُّمَّ الدُّعَاء إِذَا وَلَّوْا مُدْبِرِينَ ﴿٥٢﴾
وَمَا أَنتَ بِهَادِي الْعُمْيِ عَن ضَلَالَتِهِمْ ...
So verily, you cannot make the dead to hear, nor can you make the deaf to hear the call, when they show their backs and turn away.
And you cannot guide the blind from their straying;
The second
He causes the night to enter the day, and He causes the day to enter the night and has subjected the sun and the moon - each running [its course] for a specified term. That is Allah, your Lord; to Him belongs sovereignty. And those whom you invoke other than Him do not possess [as much as] the membrane of a date seed.
[h=2]If you invoke them, they do not hear your supplication; andif they heard, they would not respond to you. And on the Day of Resurrectionthey will deny your association. And none can inform you like [one] Acquainted[with all matters].[/h]12-13 Sourat Fatir
The Third
Narrated Ibn ‘Umar:
“The Messenger of Allah spoke to the People (buried) in the Well saying: “Have you found out that what your Lord had promised you is true?” then someone exclaimed: “Are you calling out to the dead!” The Prophet replied: “You do not hear better than they do, except they do not respond.”
Sahih Bukhari, Volume 2, Book 23, Number 452
Narrated Abu Talha:
“On the day of Badr, the Prophet ordered that the corpses of twenty four leaders of Quraish should be thrown into one of the dirty dry wells of Badr. �� When he halted at the edge of the well, he addressed the corpses of the Quraish infidels by their names and their fathers’ names, “O so-and-so, son of so-and-so and O so-and-so, son of so-and-so! Would it have pleased you if you had obeyed Allah and His Apostle? We have found true what our Lord promised us. Have you too found true what your Lord promised you? “‘Umar said, “O Allah’s Apostle! You are speaking to bodies that have no souls!” Allah’s Apostle said, “By Him in Whose Hand Muhammad’s soul is, you do not hear, what I say better than they do.” (Qatada said, “Allah brought them to life (again) to let them hear him, to reprimand them and slight them and take revenge over them and caused them to feel remorseful and regretful.”)
Sahih Bukhari, Volume 5, Book 59, Number 314
That means it's a special event, god gave that possibility to Muhammad (S) at that time
That's an explanation also possible
Narrated Ibn Shihab:
These were the battles of Allah’s Apostle (which he fought), and while mentioning (the Badr battle) he said, “While the corpses of the pagans were being thrown into the well, Allah’s Apostle said (to them), ‘Have you found what your Lord promised true?” ‘Abdullah said, “Some of the Prophet’s companions said, “O Allah’s Apostle! You are addressing dead people.’ Allah’s Apostle replied, ‘You do not hear what I am saying, better than they.’ ��”
Sahih Bukhari, Volume 5, Book 59, Number 360
About this sayings Aisha said : Muhammad (S) means They now know that what I was telling them is right
You have to be careful the Arabic language is a bit special
سمع
Does not just mean listening
The fourth
It was narrated that Abdullah said: "The Messenger of Allah (ﷺ) said: 'Allah (SWT) has angels who travel around on Earth conveying to me the Salams of my Ummah.'"
And what we should remark that if Muhammad (S) hear our Salam why Allah will send angels with one mission conveying our Salams to him?
The Second party see that: the dead CAN hear generally and not in all situations
And there is also a third party that sees that: the dead hear in all situations but it is not useful for them