better expression

[hemmin]

• The customers under the MG interface should be able to make calls with each other.
• After disabling the MG interface, the customers under the MG interface should still be able to make calls with each other.
Can I delete 'each other'.

[matthewpage]

A: if you delete 'each other', the meaning becomes a bit more vague (harder to know exactly what you mean) but, alas, it is still gramatically correct.

[MikeNewYork]

Originally Posted by hemmin

• The customers under the MG interface should be able to make calls with each other.
• After disabling the MG interface, the customers under the MG interface should still be able to make calls with each other.
Can I delete 'each other'.

If it is important that the customers can call each other as opposed to making calls to others, I would not take it out.

I would say "make calls to each other".