LG Optimus F7 Instruction Manual

							81Troubleshooting
Category Sub-Category QuestionAnswer
Phone	
Spec Battery	
Time What	
is	the	
maximum	 amount	
of	 time	 my	phone’s	
battery	 will	last	
before	I	 need	to	
recharge	 it? Talk	
Time:	 15hr	(900	min.)
Standby	 Time:	300Hr	 (12.5	Days)
Phone	
Spec Band Which	
wireless	
bands	 are	
supported	 by	the	
phone? Your	
phone	 is	able	 to	operate	 on	the	
800MHz,	 1900MHz	,	 and	2100MHz	 bands.
Recovery	
Solution Factory	
Reset How	
do	I	perform	a	
factory	 reset? 1.	
On	 the	 Home	 screen,	 touch	the	Menu 
Key	
.
2.	 Touch 	System settings > Backup & reset 
> Factory data reset.
NOTE  Yo u 	can	 touch	 the	checkbox	 to	
also	 erase	 all	contents	 from	your	
microSD	 card	when	 the	phone	 is	
reset.
3.	 Read	 the	warning	 and	touch	 Reset 
phone.
4.Touch	 Erase everything.
Attention:	 If	a	factory	 reset	is	performed,	
all	 installed	 application	 and	user	 data	will	be	
erased.	 Please	remember	 to	back	 up	any	
important	 data	before	 performing	a	 factory	
reset. 
						

							82Safety
HAC
This	phone	 has	been	 tested	 and	rated	 for	use	 with	 hearing	 aids	for	some	
of	 the	 wireless	 technologies	 that	it	uses.	 However,	 there	may	be	some	
newer	 wireless	 technologies	 used	in	this	 phone	 that	have	 not	been	 tested	
yet	 for	use	 with	 hearing	 aids.	It	is	 important	 to	try	 the	 different	 features	of	
this	 phone	 thoroughly	 and	in	different	 locations,	 using	your	hearing	 aid	or	
cochlear	 implant,	to	determine	 if	you	 hear	 any	interfering	 noise.	Consult	
your	 service	 provider	 or	the	 manufacturer	 of	this	 phone	 for	information	 on	
hearing	 aid	compatibility.	 If	you	 have	 questions	 about	return	 or	exchange	
policies,	 consult	your	service	 provider	 or	phone	 retailer.
FCC Part 15 Class B Compliance
This	device	 complies	 with	part	15	of	FCC	 rules.	 Operation	 is	subject	
to	 the	 following	 two	conditions:	 (1)	This	 device	 may	not	cause	 harmful	
interference,	 and	(2)	this	 device	 must	accept	 any	interference	 received,	
including	 interference	 that	causes	 undesired	 operation.	 Any	changes	
or	 modifications	 not	expressly	 approved	in	this	 user	 guide	 could	void	
your	 warranty	 for	this	 equipment.	 Use	only	 the	supplied	 antenna.	 Use	
of	 unauthorized	 antennas	(or	modifications	 to	the	 antenna)	 could	impair	
call	 quality,	 damage	 the	phone,	 void	your	 warranty	 and/or	violate	 FCC	
regulations.	 Don’t	use	the	phone	 with	a	damaged	 antenna.	
 A	damaged	
antenna	 could	cause	a	 minor	skin	burn.	 Contact	 your	local	 dealer	 for	a	
replacement	 antenna.
FCC RF Exposure Information 
WARNING! Read this information before operating the phone.
In	August	 1996,	the	Federal	 Communications	 Commission	(FCC)	of	the	
United	 States,	 with	its	action	 in	Report	 and	Order	 FCC	96-326,	 adopted	
an	 updated	 safety	standard	 for	human	 exposure	 to	Radio	 Frequency	 (RF)	
electromagnetic	 energy	emitted	 by	FCC	 regulated	 transmitters.	 Those	
guidelines 	are 	consistent 	with 	the 	safety 	standard 	previously 	set 	by 	both 	U.S. 	
and	 international	 standards	bodies.	The	design	 of	this	 phone	 complies	 with	
the	 FCC	 guidelines	 and	these	 international	 standards. 
						

							83Safety
Bodily Contact During Operation
This	 device	 was	tested	 for	typical	 use	with	 the	back	 of	the	 phone	 kept	
0.39	 inches	 (1.0	cm)	 from	 the	body.	 To	comply	 with	FCC	RF	exposure	
requirements,	a	 minimum	separation	 distance	of	0.39	 inches	 (1.0	cm)	
must	 be	maintained	 between	the	user’s	 body	and	the	back	 of	the	 phone,	
including	 the	antenna,	 whether	extended	 or	retracted.	 Third-party	 belt-clips,	
holsters,	 and	similar	 accessories	 containing	metallic	components	 may	not	
be	 used.	 Avoid	 the	use	 of	accessories	 that	cannot	 maintain	 0.39	inches	 (1.0	
cm)	 distance	 between	 the	user’s	 body	and	the	back	 of	the	 phone	 and	have	
not	 been	 tested	 for	compliance	 with	FCC	RF	exposure	 limits.
Vehicle-Mounted External Antenna
(Optional,	 if	available.)	
To 	satisfy	 FCC	RF	exposure	 requirements,	 keep	8	inches	(20	cm)	 between	
the	 user	/	 bystander	 and	vehicle-mounted	 external	antenna.	 For	more	
information	 about	RF	exposure,	 visit	the	FCC	 website	 at	www.fcc.gov.
Caution
Use	 only	 the	supplied	 antenna.	 Use	of	unauthorized	 antennas	(or	
modifications	 to	the	 antenna)	 could	impair	 call	quality,	 damage	 the	phone,	
void 	your 	warranty 	and/or 	violate 	FCC	 regulations. 	Don’t 	use	 the	phone 	with	
a	 damaged	 antenna.	A	 damaged	antenna	could	cause	a	 minor	skin	burn.	
Contact	 your	local	 dealer	 for	a	replacement	 antenna.
Wi Fi Caution
This	device	 is	capable	 of	operating	 in	802.11a/n	 mode. 	
For	 802.11a/n	 devices	operating	 in	the	 frequency	 range	of	5.15	-	 5.25	GHz,	
they	 are	restricted	 for	indoor	 operations	 to	reduce	 any	potential	 harmful	
interference	 for	Mobile	 Satellite	 Services	 (MSS)	in	the	 US.
Wi-Fi	 Access	 Points	that	are	capable	 of	allowing	 your	device	 to	operate	 in	
802.11a/n	 mode(5.15	-	 5.25	GHz	band)	 are	optimized	 for	indoor	 use	only.
If	 your	 Wi-Fi	 network	 is	capable	 of	operating	 in	this	 mode,	 please	 restrict	
your	 Wi-Fi	 use	indoors	 to	not	 violate	 federal	 regulations	 to	protect	 Mobile	
Satellite	 Services. 
						

							84Safety
Consumer Information About Radio Frequency 
Emissions
Your wireless phone, which contains a radio transmitter and receiver, 
emits radio frequency energy during use. The following consumer 
information addresses commonly asked questions about the health 
effects of wireless phones.
Are wireless phones safe?
Scientific	research	on	the	 subject	 of	wireless	 phones	and	radio	 frequency	
(“RF”)	 energy	 has	been	 conducted	 worldwide	for	many	 years,	 and	
continues.	 In	the	 United	 States,	 the	Food	 and	Drug	 Administration	 (“FDA”)	
and	 the	Federal	 Communications	 Commission	(“FCC”)	set	policies	 and	
procedures	 for	wireless	 phones.	The	FDA	 issued	a	 website	publication	 on	
health	 issues	 related	 to	cell	 phone	 usage	where	 it	states,“The	 scientific	
community	 at	large	 …believes	 that	the	weight	 of	scientific	 evidence	 does	
not	 show	 an	association	 between	exposure	 to	radiofrequency	 (RF)	from	 cell	
phones	 and	adverse	 health	outcomes.	 Still	the	scientific	 community	 does	
recommend	 conducting	additional	research	to	address	 gaps	in	knowledge.	
That	 research	 is	being	 conducted	 around	the	world	 and	FDA	 continues	
to	 monitor	 developments	 in	this	 field.	 Yo u	can	 access	 the	joint	 FDA/FCC	
website	 at	http://www.fda.gov	 (under	“c”in	the	subject	 index,	select	Cell	
Phones	>	 Research).	 Yo u	can	 also	 contact	 the	FDA	 toll-free	 at	(888)	 463-
6332	 or	(888)	 INFO-FDA.	 In	June	 2000,	 the	FDA	 entered	 into	a	cooperative	
research	 and	development	 agreement	through	which	additional	 scientific	
research	 is	being	 conducted.	 The	FCC	 issued	 its	own	 website	 publication	
stating	 that	“there	 is	no	 scientific	 evidence	 that	proves	 that	wireless	
phone	 usage	can	lead	 to	cancer
 	or	a	 variety	 of	other	 problems,	 including	
headaches,	 dizziness	or	memory	 loss.”This	 publication	 is	available	 at	http://
www.fcc.gov/cgb/ 	cellular.html 	or 	through 	the 	FCC 	at 	(888) 	225-5322 	or 	(888) 	
CALL-FCC.
What does “SAR” mean?
In	 1996,	 the	FCC,	 working	 with	the	FDA,	 the	U.S.	 Environmental	 Protection	
Agency,	 and	other	 agencies,	 established	 RF	exposure	 safety	guidelines	
for	 wireless	 phones	in	the	 United	 States.	 Before	a	 wireless	phone	model	 
						

							85Safety
is	available	 for	sale	 to	the	 public,	 it	must	 be	tested	 by	the	 manufacturer	
and	 certified	 to	the	 FCC	 that	it	does	 not	exceed	 limits	established	 by	the	
FCC.	 One	of	these	 limits	is	expressed	 as	a	Specific	 Absorption	 Rate,	or	
“SAR.”SAR	 is	a	measure	 of	the	 rate	 of	absorption	 of	RF	 energy	 in	the	
body.	 Tests	for	SAR	 are	conducted	 with	the	phone	 transmitting	 at	its	
highest	 power	level	in	all	 tested	 frequency	 bands.	Since	1996,	 the	FCC	
has	 required	 that	the	SAR	 of	handheld	 wireless	phones	not	exceed	 1.6	
watts	 per	kilogram,	 averaged	 over	one	gram	 of	tissue.	 Although	 the	SAR	 is	
determined	 at	the	 highest	 power	level,	the	actual	 SAR	value	 of	a	wireless	
phone	 while	operating	 can	be	less	 than	 the	reported	 SAR	value.	 This	is	
because	 the	SAR	 value	 may	vary	from	 call	to	call,	 depending	 on	factors	
such	 as	proximity	 to	a	cell	site,	 the	proximity	 of	the	 phone	 to	the	 body	
while 	in 	use, 	and 	the 	use 	of 	hands-free 	devices. 	For 	more 	information 	about 	
SARs,	 see	the	FCC’s	 OET
Bulletins 	56 	and 	65 	at 	http://www.fcc.gov/Bureaus/Engineering_Technology/
Doc	 uments/bulletins	 or	visit	 the	Cellular	 Telecommunications	 Industry	
Association	 website	at	http://www.ctia.org/consumer_info/index.cfm/
AID/10371.	 Yo u	may	 also	wish	 to	contact	 the	manufacturer	 of
 	your	 phone.
Can I minimize my RF exposure?
If	you	 are	concerned	 about	R F,	there	 are	several	 simple	steps	you	can	take	
to	 minimize	 your	RF	exposure.	 Yo u	can,	 of	course,	 reduce	your	talk	time.	
Yo u 	can	 place	 more	 distance	 between	 your	body	 and	the	source	 of	the	 R F,	
as	 the	 exposure	 level	drops	 off	dramatically	 with	distance.	 The	FDA/FCC	
website	 states	that	“hands-free	 kits	can	 be	used	 with	wireless	 phones	
for	 convenience	 and	comfort.	 These	systems	 reduce	the	absorption	 of	
RF	 energy	 in	the	 head	 because	 the	phone,	 which	is	the	 source	 of	the	 RF	
emissions,	 will	not	be	placed	 against	 the	head.	 On	the	 other	 hand,	 if	the	
phone	 is	mounted	 against	the	waist	 or	other	 part	of	the	 body	 during	 use,	
then	 that	part	of	the	 body	 will	absorb	 more	RF	energy.	 Wireless	 phones	
marketed	 in	the	 U.S.	 are	required	 to	meet	 safety	 requirements	 regardless	
of	 whether	 they	are	used	 against	 the	head	 or	against	 the	body.	 Either	
configuration	 should	result	in	compliance	 with	the	safety	 limit.”Also,	 if	
you	 use	your	 wireless	 phone	while	in	a	car,	you	 can	use	a	 phone	 with	an	
antenna	 on	the	 outside	 of	the	 vehicle.	 Yo u	should	 also	read	 and	follow	 your	 
						

							86Safety
wireless	phone	manufacturer’s	 instructions	for	the	 safe	 operation	 of	your	
phone.
Do wireless phones pose any special risks to children?
The	 FDA/FCC	 website	states	that	“the	 scientific	 evidence	 does	not	show	a	
danger 	to 	users 	of 	wireless 	communication 	devices, 	including 	children.”The 	
FDA/FCC	 website	further	states	that	“some	 groups	sponsored	 by	other	
national	 governments	 have	advised	 that	children	 be	discouraged	 from	
using	 wireless	 phones	at	all”.	 For	example,	 the	Stewart	 Report	from	the	
United	 Kingdom	 [“UK”]	made	such	a	 recommendation	 in	December	 2000.	
In	 this	 report	a	 group	of	independent	 experts	noted	that	no	evidence	
exists	 that	using	a	 cell	phone	 causes	 brain	tumors	 or	other	 ill	effects.	 [The	
UK’s]	 recommendation	 to	limit	 cell	phone	 use	by	children	 was	strictly	
precautionary;	 it	was	 not	based	 on	scientific	 evidence	 that	any	health	
hazard	 exists.	A	 copy	of	the	 UK’s	 leaflet	 is	available	 at	http://www.dh.gov.uk	
(search	 “mobile”),	 or	you	 can	write	 to:	NRPB,	 Chilton,	 Didcot,	Oxon	OX11	
ORQ,	 United	 Kingdom.	 Copies	of	the	 UK’s	 annual	 reports	 on	mobile	 phones	
and	 RF	are	 available	 online	at	www.iegmp.org.uk	 and	http://www.hpa.org.
uk/radiation/	 (search	“mobile”).	 Parents	who	wish	 to	reduce	 their	children’s	
RF	 exposure	 may	choose	 to	restrict	 their	children’s	 wireless	phone	use.
Where can I get further information about RF emissions?
For	further	 information,	 see	the	following	 additional	 resources	 (websites	
current	 as	of	April	 2005):
U.S. Food and Drug Administration
FDA	Consumer	 magazine	November-December	 2000		
Telephone:	 (888)	INFO-FDA		
http://www.fda.gov	 (Under	“c”in	the	subject	 index,	select	Cell	Phones	>	
Research.)
U.S. Federal Communications Commission
445	 12th	 Street,	 S.W.	Washington,	 D.C.	20554	
Telephone:	 (888)	225-5322	
http://www.fcc.gov/oet/rfsafety 
						

							87Safety
Independent Expert Group on Mobile Phones
http://www.iegmp.org.uk
Royal Society of Canada Expert Panels on Potential Health Risks 
of Radio Frequency Fields from Wireless Telecommunication 
Devices
283	 Sparks	 Street	Ottawa,	 Ontario	K1R	7X9	Canada	
Telephone:	 (613)	991-6990	
http://www.rsc.ca/index.php?page=Expert_Panels_RF&Lang_id=120
World Health Organization
Avenue	 Appia	20	1211	 Geneva	 27	Switzerland	
Telephone:	 011	41	22	791	 21	11	
http://www.who.int/mediacentre/factsheets/fs193/en/
International Commission on Non-Ionizing Radiation Protection
c/o	 Bundesamt	 fur	Strahlenschutz	
Ingolstaedter	 Landstr.	1	
85764	 Oberschleissheim	 Germany	
Telephone:	 011	49	1888	 333	2156	
http://www.icnirp.de
American National Standards Institute
1819	L	 Street,	N.W.,	6th	Floor	 Washington,	 D.C.	20036	
Telephone:	 (202)	293-8020	
http://www.ansi.org
National Council on Radiation Protection and Measurements
7910	 Woodmont	 Avenue,	Suite	800	Bethesda,	 MD	20814-3095	
Telephone:	 (301)	657-2652	
http://www.ncrponline.org
Engineering in Medicine and Biology Society, Committee on 
Man and Radiation (COMAR) of the Institute of Electrical and 
Electronics Engineers
http://ewh.ieee.org/soc/embs/comar/ 
						

							88Safety
Consumer Information on SAR
(Specific Absorption Rate)
This	model	 phone	 meets	 the	government's	 requirements	for	exposure	
to	 radio	 waves.	 Your	wireless	 phone	is	a	radio	 transmitter	 and	receiver.	
It	 is	 designed	 and	manufactured	 not	to	exceed	 the	emission	 limits	
for	 exposure	 to	Radio	 Frequency	 (RF)	energy	 set	by	the	 Federal	
Communications	 Commission	of	the	 U.S.	 Government.	 These	limits	are	
part	 of	comprehensive	 guidelines	and	establish	 permitted	 levels	of	RF	
energy	 for	the	 general	 population.	 The	guidelines	 are	based	 on	standards	
that	 were	 developed	 by	independent	 scientific	organizations	 through	
periodic	 and	thorough	 evaluation	 of	scientific	 studies.	The	standards	 include	
a	 substantial	 safety	margin	 designed	 to	assure	 the	safety	 of	all	 persons,	
regardless	 of	age	 and	health.	 The	exposure	 standard	for	wireless	 mobile	
phones	 employs	a	 unit	of	measurement	 known	as	the	 Specific	 Absorption	
Rate,	 or	SAR.	 The	SAR	 limit	set	by	the	 FCC	 is	1.6	 W/kg.	 Tests	for	SAR	 are	
conducted	 using	standard	 operating	 positions	specified	 by	the	 FCC	 with	
the	 phone	 transmitting	 at	its	 highest	 certified	 power	level	in	all	 tested	
frequency	 bands.	Although	 SAR	is	determined	 at	the	 highest	 certified	
power	 level,	the	actual	 SAR	level	 of	the	 phone	 while	operating	 can	be	well	
below	 the	maximum	 value.	Because	 the	phone	 is	designed	 to	operate	 at	
multiple

	 power	 levels	to	use	 only	 the	power	 required	 to	reach	 the	network,	
in	 general,	 the	closer	 you	are	to	a	 wireless	 base	station	 antenna,	 the	lower	
the	 power	 output.	 Before	a	 phone	model	is	available	 for	sale	 to	the	 public,	
it	 must	 be	tested	 and	certified	 to	the	 FCC	 that	it	does	 not	exceed	 the	limit	
established	 by	the	 government-adopted	 requirement	for	safe	 exposure.	
The	 tests	 are	performed 	in	 positions 	and	 locations 	(e.g.,	 at	the	 ear	and	 worn	
on	 the	 body)	 as	required	 by	the	 FCC	 for	each	 model.	 The	highest	 SAR	value	
for	 this	 model	 phone	 when	tested	 for	use	 at	the	 ear	is	0.78W/kg	 and	when	
worn	 on	the	 body,	 as	described	 in	this	 user	 guide,	 is	1.14	 W/kg	 (bodyworn	
measurements	 differ	among	 phone	models,	 depending	 upon	available	
accessories	 and	FCC	 requirements).	 While	there	may	be	differences	
between	 SAR	levels	 of	various	 phones	 and	at	various	 positions,	 they	all	
meet	 the	government	 requirement	 for	safe	 exposure.	 The	FCC	 has	granted	
an	 Equipment	 Authorization	 for	this	 model	 phone	 with	all	reported	 SAR	 
						

							89Safety
levels	evaluated	 as	in	compliance	 with	the	FCC	 RF	emission	 guidelines.	
SAR	 information	 on	this	 model	 phone	 is	on	 file	 with	 the	FCC	 and	can	be	
found	 under	the	Display	 Grant	section	 of	http://www.fcc.gov/oet/fccid	 after	
searching	 on	FCC	 ID	ZNFUS780.
Additional	 information	 on	Specific	 Absorption	 Rates	(SAR)	can	be	found	
on	 the	 Cellular	 Telecommunications	 Industry	Association	 (CTIA)	website	 at	
http://www.ctia.org/.
*	 In	 the	 United	 States	and	Canada,	 the	SAR	 limit	for	mobile	 phones	
used	 by	the	 public	 is	1.6	 watts/kg	 (W/kg)	averaged	 over	one	gram	 of	
tissue.	 The	standard	 incorporates	a	 substantial	margin	of	safety	 to	give	
additional	 protection	 for	the	 public	 and	to	account	 for	any	 variations	 in	
measurements.
FCC Hearing-Aid Compatibility (HAC) Regulations 
for Wireless Devices
On	 July	 10,	2003,	 the	U.S.	 Federal	 Communications	 Commission	(FCC)	
Report	 and	Order	 in	WT	 Docket	 01-309	modified	 the	exception	 of	wireless	
phones	 under	the	Hearing	 Aid	Compatibility	 Act	of	1988	 (HAC	 Act)	to	
require	 digital	wireless	 phones	be	compatible	 with	hearing-aids.	 The	intent	
of	 the	 HAC	 Act	is	to	 ensure	 reasonable	 access	to	telecommunications	
services	 for	persons	 with	hearing	 disabilities.	 While	some	wireless	 phones	
are	 used	 near	some	 hearing	 devices	 (hearing	 aids	and	cochlear	 implants),	
users	 may	detect	a	 buzzing,	humming,	 or	whining	 noise.	Some	hearing	
devices	 are	more	 immune	 than	others
 	to	 this	 interference	 noise,	and	
phones	 also	vary	 in	the	 amount	 of	interference	 they	generate.	 The	wireless	
telephone	 industry	has	developed	a	 rating	system	 for	wireless	 phones,	to	
assist	 hearing	 device	users	to	find	 phones	 that	may	 be	compatible	 with	
their	 hearing	 devices.	 Not	all	phones	 have	been	 rated.	 Phones	 that	are	rated 	
have	 the	rating	 on	their	 box	or	a	 label	 located	 on	the	 box.
The	 ratings	 are	not	 guarantees.	 Results	will	vary	 depending	 on	the	 user's	
hearing	 device	and	hearing	 loss.	If	your	 hearing	 device	happens	 to	be	
vulnerable	 to	interference,	 you	may	 not	be	able	 to	use	a	 rated	phone	
successfully.	 Trying	out	the	phone	 with	your	 hearing	 device	is	the	 best	 way	 
						

							90Safety
to	evaluate	 it	for	 your	 personal	 needs.
M-Ratings:	 Phones	rated	M3	or	M4	 meet	 FCC	requirements	 and	are	likely	
to	 generate	 less	interference	 to	hearing	 devices	 than	phones	 that	are	not	
labeled.	 M4	is	the	 better/higher	 of	the	 two	 ratings.	
T-Ratings:	 Phones	rated	T3	or	T4	 meet	 FCC	requirements	 and	are	likely	
to	 generate	 less	interference	 to	hearing	 devices	 than	phones	 that	are	not	
labeled.	 T4	is	the	 better/	 higher	of	the	 two	 ratings.
Hearing	 devices	may	also	be	rated.	 Your	hearing	 device	manufacturer	 or	
hearing	 health	professional	 may	help	you	find	 this	rating.	 Higher	 ratings	
mean	 that	the	hearing	 device	is	relatively	 immune	to	interference	 noise.	
The 	hearing 	aid 	and 	wireless 	phone 	rating 	values 	are 	then 	added 	together. 	A	
sum	 of	5	is	considered	 acceptable	for	normal	 use.	A	sum	of	6	is	considered	
for	 best	 use.
In	the	 above	 example,	 if	a	hearing	 aid	meets	 the	M2	 level	 rating	 and	the	
wireless	 phone	meets	 the	M3	 level	 rating,	 the	sum	 of	the	 two	 values	 equal	
M5.	 This	 should	 provide	 the	hearing	 aid	user	 with	“normal	 usage”while	
using 	their	 hearing 	aid	 with	 the	particular 	wireless 	phone. 	“Normal 	usage”in 	
this	 context	 is	defined	 as	a	signal	 quality	 that’s	acceptable	 for	normal	
operation.	 The	M	mark	is	intended	 to	be	 synonymous	 with	the	U	 mark.	
The	T	 mark	is	intended	 to	be	 synonymous	 with	the	UT	mark.	 The	M	 and	T	
marks	 are	recommended	 by	the	 Alliance	 for	Telecommunications	 Industries	
Solutions	 (ATIS).	The	U	and	UT	marks	 are	referenced	 in	Section	 20.19	of	
the	 FCC	 Rules.	 The	HAC	 rating	 and	measurement	 procedure	are	described	
in	 the	 American	 National	Standards	 Institute	(ANSI)	C63.19	 standard.	 When	
you're	 talking	 over	the	cell	 phone,	 it's	recommended	 you'd	turn	the	BT	
(Bluetooth)	 or	WLAN	 mode	off	for	HAC.	 This	phone	 has	been	 tested	 and	
rated	 for	use	 with	 hearing	 aids	for	some	 of	the	 wireless	 technologies	 that	
it	 uses.	 However,	 there	may	be	some	 newer	 wireless	 technologies	 used	
in	 this	 phone	 that	have	 not	been	 tested	 yet	for	use	 with	 hearing	 aids.	It