diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..24f122a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,14 @@
+# Root editor config file
+root = true
+
+# Common settings
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+# python, js indentation settings
+[{*.py,*.js}]
+indent_style = tab
+indent_size = 4
diff --git a/erpnext/hooks.py b/erpnext/hooks.py
index 726ab6e..9873456 100644
--- a/erpnext/hooks.py
+++ b/erpnext/hooks.py
@@ -271,11 +271,11 @@
 	},
 	"Contact": {
 		"on_trash": "erpnext.support.doctype.issue.issue.update_issue",
-		"after_insert": "erpnext.communication.doctype.call_log.call_log.set_caller_information",
+		"after_insert": "erpnext.telephony.doctype.call_log.call_log.set_caller_information",
 		"validate": "erpnext.crm.utils.update_lead_phone_numbers"
 	},
 	"Lead": {
-		"after_insert": "erpnext.communication.doctype.call_log.call_log.set_caller_information"
+		"after_insert": "erpnext.telephony.doctype.call_log.call_log.set_caller_information"
 	},
 	"Email Unsubscribe": {
 		"after_insert": "erpnext.crm.doctype.email_campaign.email_campaign.unsubscribe_recipient"
diff --git a/erpnext/modules.txt b/erpnext/modules.txt
index 1e2aeea..62f5dce 100644
--- a/erpnext/modules.txt
+++ b/erpnext/modules.txt
@@ -25,4 +25,5 @@
 Quality Management
 Communication
 Loan Management
-Payroll
\ No newline at end of file
+Payroll
+Telephony
\ No newline at end of file
diff --git a/erpnext/public/build.json b/erpnext/public/build.json
index 2695502..2f15cbc 100644
--- a/erpnext/public/build.json
+++ b/erpnext/public/build.json
@@ -49,7 +49,8 @@
 		"public/js/education/assessment_result_tool.html",
 		"public/js/hub/hub_factory.js",
 		"public/js/call_popup/call_popup.js",
-		"public/js/utils/dimension_tree_filter.js"
+		"public/js/utils/dimension_tree_filter.js",
+		"public/js/telephony.js"
 	],
 	"js/item-dashboard.min.js": [
 		"stock/dashboard/item_dashboard.html",
diff --git a/erpnext/public/js/call_popup/call_popup.js b/erpnext/public/js/call_popup/call_popup.js
index 5e4d4a5..aeb3b38 100644
--- a/erpnext/public/js/call_popup/call_popup.js
+++ b/erpnext/public/js/call_popup/call_popup.js
@@ -74,7 +74,7 @@
 				'click': () => {
 					const call_summary = this.dialog.get_value('call_summary');
 					if (!call_summary) return;
-					frappe.xcall('erpnext.communication.doctype.call_log.call_log.add_call_summary', {
+					frappe.xcall('erpnext.telephony.doctype.call_log.call_log.add_call_summary', {
 						'call_log': this.call_log.name,
 						'summary': call_summary,
 					}).then(() => {
diff --git a/erpnext/public/js/telephony.js b/erpnext/public/js/telephony.js
new file mode 100644
index 0000000..bd7f890
--- /dev/null
+++ b/erpnext/public/js/telephony.js
@@ -0,0 +1,23 @@
+frappe.ui.form.ControlData = frappe.ui.form.ControlData.extend( {
+	make_input() {
+		this._super();
+		if (this.df.options == 'Phone') {
+			this.setup_phone();
+		}
+	},
+	setup_phone() {
+		if (frappe.phone_call.handler) {
+			this.$wrapper.find('.control-input')
+				.append(`
+					<span class="phone-btn">
+						<a class="btn-open no-decoration" title="${__('Make a call')}">
+							<i class="fa fa-phone"></i></a>
+					</span>
+				`)
+				.find('.phone-btn')
+				.click(() => {
+					frappe.phone_call.handler(this.get_value(), this.frm);
+				});
+		}
+	}
+});
\ No newline at end of file
diff --git a/erpnext/communication/doctype/call_log/__init__.py b/erpnext/telephony/__init__.py
similarity index 100%
copy from erpnext/communication/doctype/call_log/__init__.py
copy to erpnext/telephony/__init__.py
diff --git a/erpnext/communication/doctype/call_log/__init__.py b/erpnext/telephony/doctype/__init__.py
similarity index 100%
copy from erpnext/communication/doctype/call_log/__init__.py
copy to erpnext/telephony/doctype/__init__.py
diff --git a/erpnext/communication/doctype/call_log/__init__.py b/erpnext/telephony/doctype/call_log/__init__.py
similarity index 100%
rename from erpnext/communication/doctype/call_log/__init__.py
rename to erpnext/telephony/doctype/call_log/__init__.py
diff --git a/erpnext/telephony/doctype/call_log/call_log.js b/erpnext/telephony/doctype/call_log/call_log.js
new file mode 100644
index 0000000..977f86d
--- /dev/null
+++ b/erpnext/telephony/doctype/call_log/call_log.js
@@ -0,0 +1,8 @@
+// Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+frappe.ui.form.on('Call Log', {
+	// refresh: function(frm) {
+
+	// }
+});
diff --git a/erpnext/communication/doctype/call_log/call_log.json b/erpnext/telephony/doctype/call_log/call_log.json
similarity index 96%
rename from erpnext/communication/doctype/call_log/call_log.json
rename to erpnext/telephony/doctype/call_log/call_log.json
index 31e79f1..55ad2ba 100644
--- a/erpnext/communication/doctype/call_log/call_log.json
+++ b/erpnext/telephony/doctype/call_log/call_log.json
@@ -137,12 +137,11 @@
    "read_only": 1
   }
  ],
- "in_create": 1,
  "index_web_pages_for_search": 1,
  "links": [],
- "modified": "2020-08-25 17:08:34.085731",
+ "modified": "2020-11-25 14:32:44.407815",
  "modified_by": "Administrator",
- "module": "Communication",
+ "module": "Telephony",
  "name": "Call Log",
  "owner": "Administrator",
  "permissions": [
diff --git a/erpnext/communication/doctype/call_log/call_log.py b/erpnext/telephony/doctype/call_log/call_log.py
similarity index 100%
rename from erpnext/communication/doctype/call_log/call_log.py
rename to erpnext/telephony/doctype/call_log/call_log.py
diff --git a/erpnext/telephony/doctype/call_log/test_call_log.py b/erpnext/telephony/doctype/call_log/test_call_log.py
new file mode 100644
index 0000000..faa6304
--- /dev/null
+++ b/erpnext/telephony/doctype/call_log/test_call_log.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+from __future__ import unicode_literals
+
+# import frappe
+import unittest
+
+class TestCallLog(unittest.TestCase):
+	pass
diff --git a/erpnext/communication/doctype/call_log/__init__.py b/erpnext/telephony/doctype/incoming_call_handling_schedule/__init__.py
similarity index 100%
copy from erpnext/communication/doctype/call_log/__init__.py
copy to erpnext/telephony/doctype/incoming_call_handling_schedule/__init__.py
diff --git a/erpnext/telephony/doctype/incoming_call_handling_schedule/incoming_call_handling_schedule.json b/erpnext/telephony/doctype/incoming_call_handling_schedule/incoming_call_handling_schedule.json
new file mode 100644
index 0000000..6d46b4e
--- /dev/null
+++ b/erpnext/telephony/doctype/incoming_call_handling_schedule/incoming_call_handling_schedule.json
@@ -0,0 +1,60 @@
+{
+ "actions": [],
+ "creation": "2020-11-19 11:15:54.967710",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "day_of_week",
+  "from_time",
+  "to_time",
+  "agent_group"
+ ],
+ "fields": [
+  {
+   "fieldname": "day_of_week",
+   "fieldtype": "Select",
+   "in_list_view": 1,
+   "label": "Day Of Week",
+   "options": "Monday\nTuesday\nWednesday\nThursday\nFriday\nSaturday\nSunday",
+   "reqd": 1
+  },
+  {
+   "default": "9:00:00",
+   "fieldname": "from_time",
+   "fieldtype": "Time",
+   "in_list_view": 1,
+   "label": "From Time",
+   "reqd": 1
+  },
+  {
+   "default": "17:00:00",
+   "fieldname": "to_time",
+   "fieldtype": "Time",
+   "in_list_view": 1,
+   "label": "To Time",
+   "reqd": 1
+  },
+  {
+   "fieldname": "agent_group",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Agent Group",
+   "options": "Employee Group",
+   "reqd": 1
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2020-11-19 11:15:54.967710",
+ "modified_by": "Administrator",
+ "module": "Telephony",
+ "name": "Incoming Call Handling Schedule",
+ "owner": "Administrator",
+ "permissions": [],
+ "quick_entry": 1,
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}
\ No newline at end of file
diff --git a/erpnext/telephony/doctype/incoming_call_handling_schedule/incoming_call_handling_schedule.py b/erpnext/telephony/doctype/incoming_call_handling_schedule/incoming_call_handling_schedule.py
new file mode 100644
index 0000000..fcf2974
--- /dev/null
+++ b/erpnext/telephony/doctype/incoming_call_handling_schedule/incoming_call_handling_schedule.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+# import frappe
+from frappe.model.document import Document
+
+class IncomingCallHandlingSchedule(Document):
+	pass
diff --git a/erpnext/communication/doctype/call_log/__init__.py b/erpnext/telephony/doctype/incoming_call_settings/__init__.py
similarity index 100%
copy from erpnext/communication/doctype/call_log/__init__.py
copy to erpnext/telephony/doctype/incoming_call_settings/__init__.py
diff --git a/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.js b/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.js
new file mode 100644
index 0000000..1bcc846
--- /dev/null
+++ b/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.js
@@ -0,0 +1,102 @@
+// Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+function time_to_seconds(time_str) {
+	// Convert time string of format HH:MM:SS into seconds.
+	let seq = time_str.split(':');
+	seq = seq.map((n) => parseInt(n));
+	return (seq[0]*60*60) + (seq[1]*60) + seq[2];
+}
+
+function number_sort(array, ascending=true) {
+	let array_copy = [...array];
+	if (ascending) {
+		array_copy.sort((a, b) => a-b); // ascending order
+	} else {
+		array_copy.sort((a, b) => b-a); // descending order
+	}
+	return array_copy;
+}
+
+function groupby(items, key) {
+	// Group the list of items using the given key.
+	const obj = {};
+	items.forEach((item) => {
+		if (item[key] in obj) {
+			obj[item[key]].push(item);
+		} else {
+			obj[item[key]] = [item];
+		}
+	});
+	return obj;
+}
+
+function check_timeslot_overlap(ts1, ts2) {
+	/// Timeslot is a an array of length 2 ex: [from_time, to_time]
+	/// time in timeslot is an integer represents number of seconds.
+	if ((ts1[0] < ts2[0] && ts1[1] <= ts2[0]) || (ts1[0] >= ts2[1] && ts1[1] > ts2[1])) {
+		return false;
+	}
+	return true;
+}
+
+function validate_call_schedule(schedule) {
+	validate_call_schedule_timeslot(schedule);
+	validate_call_schedule_overlaps(schedule);
+}
+
+function validate_call_schedule_timeslot(schedule) {
+	// Make sure that to time slot is ahead of from time slot.
+	let errors = [];
+
+	for (let row in schedule) {
+		let record = schedule[row];
+		let from_time_in_secs = time_to_seconds(record.from_time);
+		let to_time_in_secs = time_to_seconds(record.to_time);
+		if (from_time_in_secs >= to_time_in_secs) {
+			errors.push(__('Call Schedule Row {0}: To time slot should always be ahead of From time slot.', [row]));
+		}
+	}
+
+	if (errors.length > 0) {
+		frappe.throw(errors.join("<br/>"));
+	}
+}
+
+function is_call_schedule_overlapped(day_schedule) {
+	// Check if any time slots are overlapped in a day schedule.
+	let timeslots = [];
+	day_schedule.forEach((record)=> {
+		timeslots.push([time_to_seconds(record.from_time), time_to_seconds(record.to_time)]);
+	});
+
+	if (timeslots.length < 2) {
+		return false;
+	}
+
+	timeslots = number_sort(timeslots);
+
+	// Sorted timeslots will be in ascending order if not overlapped.
+	for (let i=1; i < timeslots.length; i++) {
+		if (check_timeslot_overlap(timeslots[i-1], timeslots[i])) {
+			return true;
+		}
+	}
+	return false;
+}
+
+function validate_call_schedule_overlaps(schedule) {
+	let group_by_day = groupby(schedule, 'day_of_week');
+	for (const [day, day_schedule] of Object.entries(group_by_day)) {
+		if (is_call_schedule_overlapped(day_schedule)) {
+			frappe.throw(__('Please fix overlapping time slots for {0}', [day]));
+		}
+	}
+}
+
+frappe.ui.form.on('Incoming Call Settings', {
+	validate(frm) {
+		validate_call_schedule(frm.doc.call_handling_schedule);
+	}
+});
+
diff --git a/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.json b/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.json
new file mode 100644
index 0000000..3ffb3e4
--- /dev/null
+++ b/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.json
@@ -0,0 +1,82 @@
+{
+ "actions": [],
+ "autoname": "Prompt",
+ "creation": "2020-11-19 10:37:20.734245",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "call_routing",
+  "column_break_2",
+  "greeting_message",
+  "agent_busy_message",
+  "agent_unavailable_message",
+  "section_break_6",
+  "call_handling_schedule"
+ ],
+ "fields": [
+  {
+   "default": "Sequential",
+   "fieldname": "call_routing",
+   "fieldtype": "Select",
+   "in_list_view": 1,
+   "label": "Call Routing",
+   "options": "Sequential\nSimultaneous"
+  },
+  {
+   "fieldname": "greeting_message",
+   "fieldtype": "Data",
+   "label": "Greeting Message"
+  },
+  {
+   "fieldname": "agent_busy_message",
+   "fieldtype": "Data",
+   "label": "Agent Busy Message"
+  },
+  {
+   "fieldname": "agent_unavailable_message",
+   "fieldtype": "Data",
+   "label": "Agent Unavailable Message"
+  },
+  {
+   "fieldname": "column_break_2",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "section_break_6",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "call_handling_schedule",
+   "fieldtype": "Table",
+   "label": "Call Handling Schedule",
+   "options": "Incoming Call Handling Schedule",
+   "reqd": 1
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2020-11-19 11:17:14.527862",
+ "modified_by": "Administrator",
+ "module": "Telephony",
+ "name": "Incoming Call Settings",
+ "owner": "Administrator",
+ "permissions": [
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "System Manager",
+   "share": 1,
+   "write": 1
+  }
+ ],
+ "quick_entry": 1,
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}
\ No newline at end of file
diff --git a/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.py b/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.py
new file mode 100644
index 0000000..2b2008a
--- /dev/null
+++ b/erpnext/telephony/doctype/incoming_call_settings/incoming_call_settings.py
@@ -0,0 +1,63 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.model.document import Document
+from datetime import datetime
+from typing import Tuple
+from frappe import _
+
+class IncomingCallSettings(Document):
+	def validate(self):
+		"""List of validations
+		* Make sure that to time slot is ahead of from time slot in call schedule
+		* Make sure that no overlapping timeslots for a given day
+		"""
+		self.validate_call_schedule_timeslot(self.call_handling_schedule)
+		self.validate_call_schedule_overlaps(self.call_handling_schedule)
+
+	def validate_call_schedule_timeslot(self, schedule: list):
+		"""	Make sure that to time slot is ahead of from time slot.
+		"""
+		errors = []
+		for record in schedule:
+			from_time = self.time_to_seconds(record.from_time)
+			to_time = self.time_to_seconds(record.to_time)
+			if from_time >= to_time:
+				errors.append(
+					_('Call Schedule Row {0}: To time slot should always be ahead of From time slot.').format(record.idx)
+				)
+
+		if errors:
+			frappe.throw('<br/>'.join(errors))
+
+	def validate_call_schedule_overlaps(self, schedule: list):
+		"""Check if any time slots are overlapped in a day schedule.
+		"""
+		week_days = set([each.day_of_week for each in schedule])
+
+		for day in week_days:
+			timeslots = [(record.from_time, record.to_time) for record in schedule if record.day_of_week==day]
+
+			# convert time in timeslot into an integer represents number of seconds
+			timeslots = sorted(map(lambda seq: tuple(map(self.time_to_seconds, seq)), timeslots))
+			if len(timeslots) < 2: continue
+
+			for i in range(1, len(timeslots)):
+				if self.check_timeslots_overlap(timeslots[i-1], timeslots[i]):
+					frappe.throw(_('Please fix overlapping time slots for {0}.').format(day))
+
+	@staticmethod
+	def check_timeslots_overlap(ts1: Tuple[int, int], ts2: Tuple[int, int]) -> bool:
+		if (ts1[0] < ts2[0] and ts1[1] <= ts2[0]) or (ts1[0] >= ts2[1] and ts1[1] > ts2[1]):
+			return False
+		return True
+
+	@staticmethod
+	def time_to_seconds(time: str) -> int:
+		"""Convert time string of format HH:MM:SS into seconds
+		"""
+		date_time = datetime.strptime(time, "%H:%M:%S")
+		return date_time - datetime(1900, 1, 1)
diff --git a/erpnext/telephony/doctype/incoming_call_settings/test_incoming_call_settings.py b/erpnext/telephony/doctype/incoming_call_settings/test_incoming_call_settings.py
new file mode 100644
index 0000000..c058c11
--- /dev/null
+++ b/erpnext/telephony/doctype/incoming_call_settings/test_incoming_call_settings.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+from __future__ import unicode_literals
+
+# import frappe
+import unittest
+
+class TestIncomingCallSettings(unittest.TestCase):
+	pass