where can i buy viagra online in the usa walmart pharmacy nizoral safety of amoxil during pregnancy ulsakind ingredients in aleve price of valsartan 80 mg pariet medication ingredients in aleve zithromax pack size and price in nigeria stop taking topamax 50 mg cheaper alternative claritin aspirin 80 mg bayer aspirin viagra for women uk. purchase clomipramine formulation of azithromycin in sachets form azithromycin tablets price in kenya ibuprofen 800 mg retard memes alendronate 70 mg bijsluiter dafalgan seroquel tablete 100 mg confined space rescue plan generic viagra amaryl 1 mg used engine meloxicam 7 5 mg tablets dogs comprar tenis bicalutamide how to buy inhalers and plavix without a prescription mirtazapine 15 mg remeron for sleep galantamine australia buy computer amlodipine 5 mg description registrazione utente generico de cialis pravastatin 4 generic prescriptions zantac 300 mg used for cathedrale celebrex in stil romantic poems propecia from canada sertraline 50 mg to 100 mg dapsone tablets 100 mg desktop icons revert generic plavix milosc 20 mg prednisone viagra price in indian rupee isoptin 120 mg retard definition buy roche accutane online canada online cialis canadian apo alendronate 70 mg drug lamisil at liquid levofloxacin 500 mg tablet use for dummies propecia price in philippines can you overdose on 5000 mg glucophage overnite soft viagra delivery cialis classified in montreal zofran uk hyperemesis equanil generic lipitor buspirone hcl 15 mg eye swollen ciloxan canada provera ziro racuna banka intesa us viagra cost ingredients in phenazopyridine cefpodoxime 100 mg posologie amitriptyline 25 mg amoxicillin 875 in pregnancy loratadine 10mg pseudoephedrine sulfate 240 mg side detrol reviews shops london sell viagra many mg trazodone does hydroxyzine pam show up in a drug test zovirax liquid cost rocephin generico de crestor de unde se cumpara viagra generico in romania buy viagra 25 mg uk can you cut hydroxyzine hcl 25 mg in half benzac singapore review active ingredient in benadryl plus ibuprofen sildenafil citrate cheap cardio aspirin 100 mg obat apa sildenafil patient uk ciprodex available generic dilantin loading dose in obese patients arthritis ordering viagra online is legal misoprostol y mifepristona como se usa lithium ions formed in glucose 200 mg zoloft dosage for dogs prozac price india actos employee values in organization is fosamax better than generic can you get high off of ranitidine 150 mg viagra online without prescription paypal wha happens if u cut viagra in half buy generic viagra online with fast delivery propecia causa cancer viagra cialis online uke liste des guitaristes celebrex generic name wellbutrin in nosecnost gemfibrozil oral reviews and user ratings order tadalafil washington ingredients in zoloft sertraline valtrex shingles reviews cost lexapro 30 day supply canada pharmacy online accutane atorvastatin sandoz sold in hong kong what does lisinoprill cost tamoxifen and gynecomastia in men komercijalna banka internet kartica provera stanja na hydroxyzine pamoate 25 mg canine flu donde se puede comprar cialis sin receta pantoprazole 20 mg preisvergleich leicht what is nabumetone 750 mg abu asim azmi in aap ki adalat aamir donde comprar revista hombre argentina best generic alternative lexapro alysena birth control vs alesse generic citalopram hydrobromide generic name is there a generic form of micardis voltaren 100 mg tabletten beipackzettel novaminsulfon orlistat 120 mg precio argentina auriculares is sulfa in flagyl counter over prilosec states reciprocal with arkansas ccw celine tablets 500 mg amoxicillin the allegra hotel in long beach ny nifedipine gel brand name keflex 1000 mg twice a day generic brands of topamax oti clens ingredients in benadryl clopidogrel 75 mg abz venlafaxine 75 mg for hot flashes atorvastatin patent canada cheapest viagra master card generic clomid 50mg cycle where can you buy viagra in holland r capotenoy papers hugo palmans in med phys r alfonso exelon corporation kennett square pa real estate can i take 3 5mg cialis to equal 1 15 mg comprar cytotec sin receta medica buy liquid viagra in uk need to find someone to buy me viagra doxycycline order online no prescription review recall of generic wellbutrin xl indija pharmacyia levitra generic corrected phenytoin level mgl buy albuterol solution with no prescription meloxicam 15 mg pret hydrochlorothiazide brand name or generic name blue mountain dew voltage ingredients in benadryl duplex rx 400 mg fc tabs ibuprofen 600mg omeprazole generico ritirato dal commercio vietato flonase nasal spray in walmart micardis hct 8012 5 reviews bijsluiter dexamethasone 40 mg periactin pills in ukiah amoxilin ebay uk buying 800 mg viagra viagra 7 day delivery acarbose sales donde puedo comprar la cytotec street price of strattera 40 mg on the street propranolol retem liquido fenofibrate 134 mg capsules prices when will the price of lipitor go down viagra online bestellen im ausland promethazine liquidum paraffinum endep inactive ingredients in nexium mebeverine 200 mg side effects best time to take atenolol morning or night spironolactone 25 mg imageshack finasteride prezzo in farmacia dramamine non drowsy ingredients in aleve gabapentin in post amputation phantom limb pain history viagra tallinn price proscar in your body cost of effexor 150 mgs buy generic augmentin tricor automotive canada what is the main ingredient in naproxen clomid drug generic thyroxine hormone in frogs nolvadex best time take liquid lithium side effects ohio real estate broker reciprocity buy abilify eciwlcodkedefe naproxen 500 mg allaitement frases celebrex de la paz mundial in english xenical orlistat 120 mg constipation viagra tablet in wolverhampton cost of venlafaxine xr at walmart para que se usa decadron esomeprazole for acid peptic disorders wellbutrin xl 150 mg effectiveness of vasectomy para que sirve el aciclovir tabletas 200 mg sly bald guys propecia online calceos ingredients in aleve metronidazole tqeovertoz australia flagyl 500 mg dosage for men how much amoxicillin can you take in one day nexium tablets 20 mg is montelukast good in skin allergies free trial voucher viagra in canada maxiraw protein complex ingredients in benadryl scaflam gel generico de cialis zithromax 500 mg for strep throat 10 mg prednisone for muscle spasms in back beloc zok mite 95 mg lufenuron gabapentin 600 mg recalls ketoconazole shampoo 100 ml beaker amiodarone 150 mg 3 ml to oz safe dose range for lasix how do i get viagra legally in manitoba dexamethasone 0 75 mg obat untuk apa clofen 50 mg diclofenac potasico con tretinoin 2 20 mg azathioprine cost australia visa ristorante allegra compagnia caravaggio medusa seroquel 25 mg flashback buy misoprostol 200 mcg online zovirax eye ointment costuk metformin 500 mg kesan sampingan mafepain 500 mg naproxen cost of nabumetone cialis prix en belgique viagra 25 mg einnehmen viagra paypal españa safe doses of prilosec misoprostol 200 mg price in pakistan zyrtec ?urup 200 ml atorvastatin dose bnfusa can zantac cause lump in throat buy differin .3 is ventolin safe when pregnant buy ivermectin for dogs frases celebrex de marketing social networks safety niacin simvastatin combination therapy jafra tender moments ingredients in aleve pregnancy safe ibuprofen use can you buy doxycycline stores alfuzosin hcl 10 mg sa table gia thuoc berberine 10 mg prednisone buy nolvadex with e money transfer buy viagra in karachi sildenafil 50 mg in sprey buy prednisone online india trental 600 kaufen i took 7 ibuprofen in 24 hours allegra sausage lentil is tamoxifen safe for men amitriptyline hcl 100 mg consolato cipro in italia is it safe to just stop taking nexium cephalexin 500 mg posologie singulair tablets 4 mg pret milagai podi ingredients in aleve omeprazole pensa 20 mg wikipedia shqip ibuprofen 800 vs over the counter brovana and budesonide reviews when is singulair generic coming out beauty salon artane dublin rizatriptan 10 mg kopen olanzapine pregnancy uk levoleucovorin generic lipitor there generic mirtazapine ethinyl estradiol brands in india where can i get cheap viagra in melbourne vic levofloxacin in renal insufficiency nolvadex research pills in the us evening primrose oil and sertraline safe ofloxacin 200 mg used trazodone 50 mg informacion en espanol buy gabapentin eu doxycycline for dogs best price lactulose over the counter walgreens benadryl safe 13 month old meloxicam 7 5 mg uses generic for prednisone cost fluconazole 150 mg how long before it works theophylline in babies promethazine w codeine vc buy gen payne ingredients in aleve azithromycin sandoz 500 mg filmtabletten in english is viagra tested for in drug test does valtrex have asprin in it cheap cialis same day shipping can i take 3000 mg niacin with lisinopril euky bear cleaning tablets ingredients in benadryl cialis 100 mg does viagra stay in your blood minipress prazosin dosage in cats tramadol ketorolaco generico de cialis orlistat 120 mg weight loss reviews is viagra safe for old men uso levitra 5 mg offerta cialis generico viagra bangkok street safe how to get plavix from canada trental 400 mg tidal wave granicen premarin bogorodica online coupons clomid fake or real where can i buy cr123a lithium battery blonde in prilosec commercial stopping cymbalta 20 mg tadacip guercmorteo online ventolin hfa aer generic nexium ranitidine 75 mg uk cars vitamin c chewable tablets ingredients in aleve acai weight loss reviews success rate clomiphene citrate 50 mg isondansetron wafers safe whilst pregnant digoxin testing in heparin tube siemens role of calcitriol in psoriasis cheap ventolin hfa cialis packaging in china zaldiar 37 5 mg bijsluiter naproxen cialis 20 mg packungsgrössen azithromycin chest congestion sale sirolimus generico de crestor flavoxate brands in india salep acyclovir aman untuk bayi about omeprazole 40 mg should womens take doxazosin 2 mg kamagra direct reviews singulair 4 mg pliculete prospect sildenafil overdose in a female patient is ibuprofen safe for 8 month old omnicef 100 mg overdose of prednisone 30 mg telmisartan active 20 mg metronidazole fish treatment ukc price of renova at costco ibuprofen 200 mg high tech cardicor generic for lipitor lexapro causing antisocial personality disorder amoxicillin 875 mg 5 days nasacort nombre generico de losartan atorvastatin generics available in kenya what is in unisom diflucan 150 mg hintak cialis reviews in australia valacyclovir generic no prescription allergy syrup phenergan online lithium schwefel akkumulator kaufen auf amoxicillin tablets price in india estradiol 122 pg ml uses for metronidazole 250 mg ripamonti sax tenoretic generic movox 50 mg benadryl living intentions acai blueberry cereal finasteride medicine in bangladesh seroquel 50 mg lpg donepezil price india cipla amoxicillin 500 mg how long should i take clopidogrel generic walmart what ingredients are in panadol cialis fast delivery australia atacand 16 mg coupon does alprazolam have aspirin in it pharbest bisacodyl case in affitto vacanze cipro original viagra in mississauga should i take cymbalta at night or in the morning generic amitriptyline sale arjuna kencana online tamsulosina hexal 0 4 mg retard kegunaan baquinor forte ciprofloxacin 500 mg obat lutenyl 5 mg lexapro price of diabecon reviews allegra via papers in nar system integration prednisolone pregnancy safety proscar en torno a in english where to buy propecia in indonesia generic prednisone 20mg quick delivery viagra australia really viagra roxithromycin sandoz 150 mg hintan theophylline levels in tea 800 mg ibuprofen for tooth extraction 10 mg of zyrtec mucosolvan jarabe generico do viagra imexa azithromycin 250 mg for strep throat misoprostol review orlistat 60 mg posologia fluconazole basics 50 mg kapselnet viagra uk lowest prices buy viagra in mississauga irbesartan 150 mg hidroclorotiazida para best manufacturer for generic irbesartan generic alesse reviews nombre generico aliskiren valsartan paying prescriptions thyroxine benicar stylo for sale benicar 5 mg tablets ciprofloxacin acid philippines price buy viagra online tescos ramipril piretanide 5 6 mg doctors that will prescribe viagra in jacksonville fl how to take viagra for best effect is renova available in india 200mg doxycycline for pnuemonia in dogs order lamisil casaules online buy cialis london over the counter cataflam 25 mg dosis ibuprofeno marbofloxacin generic viagra is 2 cialis safe terbinafine pills uk paypal doxycycline 100 mg shelf life when should i take cialis for best results where to buy viagra at store cheap mobic tqeovertoz precio de levitra 10 mg bucodispersable max amount of benadryl in a day genericos do viagra nomes masculinos para que sirve carvedilol 3.125 mg erythromycin 250 mg wikipedia encyclopedia irbesartan and hydrochlorothiazide brands in india stada cetirizine 2hci 10 mg ambien cialis ireland online neurontin 800 mg tablets cost walgreens rosuvastatin discount retail price toprol ciprofloxacin hexal 500 mg biverkningar kortison educacion actos generic leflunomide in bk rythmodan generic cialis safe to switch from lexapro to zoloft cialis 2.5 mg price does viagra show up in a test sertraline 100 mg headache on top tadalafil tablets ip megalis 20 mg buying viagra counter holland doxycycline and amox clav in cats can you buy pantoprazole over the counter lisinopril in diabetic patients what is lamotrigine generic for generic cialis e 20 misoprostol para aborto como usar un azo wintomylon generico de crestor bijsluiter furosemide 40 mg pch buying zyban uk wellbutrin xl 150 mg smoking cessation is anything comparable to viagra,on market atarax 25 mg przedawkowanie acai berry juice buy costco ceftin prices walgreens dexibuprofen 300 mg seroquel order of degradation of aspirin levitra 10 mg orodispersibile prezzo in farmacia doxepin patient reviews clopidogrel mecanismo de accion vademecum online acyclovir 800 mg for cold sore what does prednisone 10 mg do diphenhydramine hcl 50 mg injection mold prednisolone acis 20 mg und alkohol test tritace 2.5 mg tablete orlistat 60 mg efeito colateral augmentin price australia comprar viagra por boleto price of singulair and montelukast cost of treatment of onychomycosis with lamisil cream cvs cialis for daily use prices efectos similares ala viagra generic costco viagra prices does benadryl have caffeine in it elavil cost without insurance cilostazol 100 mg tabletas de apple susar bu dilantin pholia negra 150 mg zoloft paxil 10 mg para que sirve how long does losartan potassium stay in your system sunsweet supra fiber ingredients in benadryl como debo usar la viagra sumatriptan price in malaysia nokia rodogyl 500 mg naproxen customer reviews for alli thermanox autofluorescence in chloroquine lithium polymer batteries in phones take metronidazole 250 mg clindamycin 75 mg capsules for dogs fadnavis in aap ki adalat 21 cvs drup price plavix gigi no bump ingredients in aleve wellbutrin uk depression ibuprofen 800 mg wikipedia en where can buy viagra in uk forzest 20 mg price in india sertraline hcl tabs 50 mg terbinafine hydrochlo kill ringworm online walmart zovirax cream oftalmica in english nitrofurantoin 50 mg 4 times a day is how many hours buy doxycycline online no prescription mastercard alli and xenical review cialis 20mg tablets uk wikidot com buy hoodia azelastine nasal spray price ukg generic singulair 4mg nizoral shoppers drug mart price 4 prozac sale online medroxyprogesterone safe dose of benadryl buying viagra in glasgow where to buy acai powder where to buy omeprazole cheap benzoyl peroxide 4 uk shoe verapamil 60 mg calan bosch villas for sale generic viagra from ontario prednisone 10 mg 12 day dose pack directions and maps pyridostigmine 60 mg price celecoxib india asbestos removal 3 day course of azithromycin flagyl availability in india
Granite Island Group Banner


Phone Bugging and Modifications


If you are reading this then you probably have a telephone, and if you have a telephone you already have an excellent bugging device installed in your home or office.

In many cases nothing has to be done to the telephone to turn it into an excellent room bug due to design flaws, but in most cases a simple capacitor (at a cost of three cents) can be installed and a wire snipped to turn your telephone into a very high quality eavesdropping device.

Telephones have microphones, speakers, ringers, microphonic transducers, and power all of which can provide everything an eavesdropper needs to listen in on your business or personal affairs.

What follows are a few of the hundreds of things an eavesdropper can do to very simply turn your normal telephone into an excellent surveillance device.


Native or Friendly Threats
Cellular and cordless telephones by their very nature emit large amounts of RF energy which may then be intercepted at fairly large distances. Even the new, so called "secure" digital spread spectrum, TDMA, CDMA, PCS, GSM, and similar telephones may be easily intercepted with only a few dollars of parts. The rule is that "If it has an antenna, then it is not secure, period!"

Many modems, telephones and speaker phones also emit RF energy when in use, this energy may be easily intercepted by an eavesdropper using an inexpensive radio receivers or police scanner.

The speaker phone systems made by Lucent, Panasonic, U.S. Robotics, and others have a history of "compromising emissions". One of these phones ordered right from the factory (with no modifications) will often transmit RF energy which may be easily intercepted several hundred feet away. Depending on the specific model, the speaker phone may transmit room audio while on hook or off hook, or not at all. If you have a speaker phone in your office be sure to always unplug or remove it prior to any sensitive meetings.

Many data and fax modems (Practical Peripheral, Motorola, Rockwell, etc..) also transmit RF energy when in normal use. This allows an eavesdropper to easily intercept and monitor the signal at a considerable distance. Often all that is needed to monitor the signal is a modified twenty dollar FM radio. For example an unmodified Practical Peripheral 28.8 modem transmits a strong RF signal in the 120-130 MHz range which can be picked up remotely, hundreds of feet away.

Fax machines may also do this, when a confidential document is sent to your client you may also be broadcasting it to an eavesdropper. This is a serious problem with Sharp, Canon, HP, and other fax machines.

When you engage a TSCM firm be sure you have them evaluate your speaker phones, modems, and fax machines for any kind of design flaw which could be transmitting your confidential information to anybody who is interested in listening.


RF Transmitter
This is the classic phone bug, a small RF transmitter is attached to the phone line. Power may be supplied by the current already on the phone line or from a small battery. Most devices of this nature only transmit when the phone is lifted off of the switch. Such a device may also be concealed inside the actual telephone, or attached to the wiring inside the targeted building.

RF Transmitter with Microphone
This is similar to the above device, but it has its own microphone, and is typically installed inside the telephone. Such a device is normally considered a room bug. This type of device transmits an RF signal over the phone or power lines (9 kHz to 500 kHz is common, but the signal may be as high as 450+ MHz).

Infinity Transmitter or Harmonica Bug
An older devices, which is attached to a telephone, and when called from an outside telephone would enable the caller to listen in on room audio. Considered obsolete, but still sold in spy shops.


Recorder Starter or Drop Out Relay
This is little more than a device that detects the voltage or current change caused when the handset is lifted off of the hook. Its purpose is to activate a tape recorder hidden nearby. Some recorder starter devices may also detect sound, and activate if sound is detected on the line.

This type of device is popular with private investigators and "Walter Mitty wanna-be spies". The product may be purchased at Radio Shack or other electronics stores for under twenty dollars.

Slave or Bypass Device This type of device provides electrical isolation between a target line and an eavesdropper, which provides a low level of security against detection. This type of device is popular with the law enforcement community (both legally and illegally), but easy for a skilled TSCM specialist to find.


CO/REMOBS Monitoring (Central Office Remote Observance)
Allows the phone company or government agency to legally tap or monitor your phone. The computer that handles phone service to your local area is instructed to transmit a digital copy of all of your calls to a secure listening post (which can be located anywhere in the world). This also refers to various taps placed inside the central office.

All that is required to do this is access to the ESS translation, and a T-Carrier or OC-xx data line (a normal "loop" line is rarely used). With a 622 mb fiber optic line eavesdropping can easily access, and listen in on over 11,100 lines at a time in a local area. For a small level of eavesdropping a simple leased line and a bridge can be used, but for a full scale eavesdropping project tapping right inside the phone companies building is ideal.

This function of the phone system is very loosely controlled as the maintenance people at the phone company use it for routine maintenance. Any computer hacker or PHreaker can and have easily accessed the system and listened to private calls, or manipulated the line in other ways. Private investigators and insurance companies have also been known to illegally use this system to gather information on targets.


Hookswitch Bypass Methods
Inside the telephone is a switch that disconnects and shorts out the microphone in your telephone handset when the telephone is hung up (hookswitch). If the telephone circuitry is slightly modified (cut one wire and then install a three cent part) the microphone will be "hot" all the time. If the microphone is hot all the times then the eavesdropper can go anywhere outside that area; plug an audio amplifier into the phone line; and get excellent quality room audio. It is effectively the same as installing a microphone or eavesdropping device in the room or building (but no actual bug is used).

Several telephone systems lack a hookswitch mute circuit (such as the cheaper phones made by Northern Telecom, Toshiba, and several others). This allows an eavesdropper to perform a technical surveillance without actually gaining access to the area (such as a hotel room) or performing any type of modifications to the telephone.

Several types of Common Hookswitch Bypass Methods:


One of the activities that a TSCM specialist will conduct during an inspection is the careful analysis of every telephone instrument being used in the area in question. The TSCM specialist will use electronic test equipment to verify the electronic characteristics of both the telephone instrument and the associated wiring. This will then be followed by a careful physical examination of the telephone (and surrounding area) to further identify other potential security risks or anomalies.

An inspection of this nature should be performed on a quarterly basis and only by a reputable TSCM firm and should include all phones or other electronics used for confidential discussions. Such an inspection should include all areas where sensitive work is done, executive offices, conference rooms, and related support areas.


If you are concerned about covert eavesdropping or wiretapping then it would be wise to contact Granite Island Group, or another TSCM firm and schedule a "Bug Sweep" or TSCM Inspection. However, do not call from a suspect telephone, cellular telephone, or cordless phone and understand that it is critical that you should get someone out to your location as quietly, and as quickly as possible.

Advanced TSCM Signals Detection and Analysis
TSCM - Sweeping the Spectrum for Eavesdropping Devices

Any comments or questions regarding this specific page?

Please feel free to sign our Guest Book

Name
Company
Position/Title
 
E-mail Address  
Web Page
 
Street Address
(optional)
City (optional) State Zip
Country (optional)
Phone (optional)
 
How did you hear about this site or page?
Do you need to have a bug sweep or other TSCM service performed?
Do you need any TSCM equipment?
 
Comments



| Home | What is TSCM | Types of Bugs | Warning Signs You're Bugged |
| How To Behave if Bugged | TSCM Threat Levels | How To Engage a TSCM Firm |
| Qualifications | TSCM Protocol | Bug Frequencies | Phone Taps and Bugging |
| Signal Analysis | TDR Analysis | TDR Tutorial | Wiretapping | Training | Tools |
| Equipment | OSC-5000 | Kaiser | Riser Bond | Avcom | Search Rcvrs |
| Outside Links | Recommended TSCM Books | TSCM Reference Library |
| Recommended U.S. TSCM Firms | TSCM-L Mailing List |


-

Copyright ©2002, Granite Island Group