fix: consider the existing paid payment request for phone payment channel
diff --git a/erpnext/accounts/doctype/payment_request/payment_request.py b/erpnext/accounts/doctype/payment_request/payment_request.py
index cb58f89..1b97050 100644
--- a/erpnext/accounts/doctype/payment_request/payment_request.py
+++ b/erpnext/accounts/doctype/payment_request/payment_request.py
@@ -393,6 +393,10 @@
 		frappe.throw(_("Payment Entry is already created"))
 
 def get_existing_payment_request_amount(ref_dt, ref_dn):
+	"""
+	Get the existing payment request which are unpaid or partially paid for payment channel other than Phone
+	and get the summation of existing paid payment request for Phone payment channel.
+	"""
 	existing_payment_request_amount = frappe.db.sql("""
 		select sum(grand_total)
 		from `tabPayment Request`
@@ -400,7 +404,9 @@
 			reference_doctype = %s
 			and reference_name = %s
 			and docstatus = 1
-			and status = 'Paid'
+			and (status != 'Paid'
+			or (payment_channel = 'Phone'
+				and status = 'Paid'))
 	""", (ref_dt, ref_dn))
 	return flt(existing_payment_request_amount[0][0]) if existing_payment_request_amount else 0
 
diff --git a/erpnext/accounts/doctype/payment_request/test_payment_request.py b/erpnext/accounts/doctype/payment_request/test_payment_request.py
index 747bad8..8a10e2c 100644
--- a/erpnext/accounts/doctype/payment_request/test_payment_request.py
+++ b/erpnext/accounts/doctype/payment_request/test_payment_request.py
@@ -127,7 +127,6 @@
 			recipient_id="nabin@erpnext.com", return_doc=1)
 		pr1.grand_total = 200
 		pr1.submit()
-		pr1.set_as_paid()
 
 		# Make a 2nd Payment Request
 		pr2 = make_payment_request(dt="Sales Order", dn=so.name,