Enable editing of supplier products and listing services connected to them

app/Models/Supplier/Phone.php

@@ -7,17 +7,19 @@ use App\Models\Product\Phone as ProductVoip;
 
 final class Phone extends Type implements SupplierItem
 {
+	protected const category_name = 'Telephone';
+
 	protected $table = 'supplier_phone';
 
 	/* INTERFACES */
 
-	public function types()
-	{
-		return $this->belongsToMany(ProductVoip::class,$this->table,'id','id','id','supplier_item_id');
-	}
-
 	public function getBillingIntervalAttribute(): int
 	{
 		return 1;	// Monthly
 	}
+
+	public function products()
+	{
+		return $this->hasMany(ProductVoip::class,'supplier_item_id','id');
+	}
 }