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    512 cdma mobile tracking 找到的工作,价格在 USD

    ******** Please read the description carefully ******* ****Many programmers and engineers failed to complete the project**** GSM is the most wide spread mobile communications system in the world. However the security of the GSM voice traffic is not guaranteed especially over the core network. It is highly desirable to have end-to-end secure communications

    $1300 (Avg Bid)
    $1300 \u5e73\u5747\u62a5\u4ef7
    7 竞标

    I'm in need of an expert in VoIP and Asterisk to fix the FAS problem which usually occurs when using a CDMA Gateway. Please, only bid if you fully understand this problem and have a solution to proposed.

    $179 (Avg Bid)
    $179 \u5e73\u5747\u62a5\u4ef7
    6 竞标

    ******** Please read the description carefully ******* GSM is the most wide spread mobile communications system in the world. However the security of the GSM voice traffic is not guaranteed especially over the core network. It is highly desirable to have end-to-end secure communications over the GSM voice channel. In order to achieve end-to-end security

    $356 (Avg Bid)
    $356 \u5e73\u5747\u62a5\u4ef7
    6 竞标

    I need an iPhone/iPad app. I would like it designed and built. Here is a scenario: Person buys a drone (online/abroad) Opens our App Registers his UAV (all details including ADHAAR) Uploads police clearance from local Office Gets added to our database of listings This data can be made available to DGCA or any ANS provider Find Drone Piolots: Using GPS location a list of active Drone flyers...

    $265 (Avg Bid)
    $265 \u5e73\u5747\u62a5\u4ef7
    3 竞标

    GSM is the most wide spread mobile communications system in the world. However the security of the GSM voice traffic is not guaranteed especially over the core network. It is highly desirable to have end-to-end secure communications over the GSM voice channel. In order to achieve end-to-end security, speech must be encrypted before it enters the GSM

    $7 - $74
    $7 - $74
    0 竞标

    GSM is the most wide spread mobile communications system in the world. However the security of the GSM voice traffic is not guaranteed especially over the core network. It is highly desirable to have end-to-end secure communications over the GSM voice channel. In order to achieve end-to-end security, speech must be encrypted before it enters the GSM

    $400 (Avg Bid)
    $400 \u5e73\u5747\u62a5\u4ef7
    6 竞标

    GSM is the most wide spread mobile communications system in the world. However the security of the GSM voice traffic is not guaranteed especially over the core network. It is highly desirable to have end-to-end secure communications over the GSM voice channel. In order to achieve end-to-end security, speech must be encrypted before it enters the GSM

    $132 (Avg Bid)
    $132 \u5e73\u5747\u62a5\u4ef7
    5 竞标

    ...Continuous mode b) Remotely controlled mode The app should do the following in either of the above modes 1. Record phone screen continuously 2. Record all calls (both GSM/CDMA and VoIP, Whatsapp etc.) 3. Send locations 4. Record mic 5. Record cameras We know this can not probably be done through stock android ROMs so we have an option to do the

    $206 (Avg Bid)
    $206 \u5e73\u5747\u62a5\u4ef7
    12 竞标

    ...for reference Mobile service providers can be identified by the first three or four digits as follows: 130/1/2 China Unicom GSM 133 China Telecom1 CDMA 135/6/7/8/9 China Mobile GSM 145 China Unicom WCDMA (formerly Data-plans only) 147 China Mobile TD-SCDMA (formerly Data-plans only) 150/1/2/8/9 China Mobile GSM 153 China Telecom1 CDMA 155 China Unicom

    $854 (Avg Bid)
    $854 \u5e73\u5747\u62a5\u4ef7
    13 竞标

    ...reference Mobile service providers can be identified by the first three or four digits as follows: 130/1/2 China Unicom GSM 133 China Telecom1 CDMA 135/6/7/8/9 China Mobile GSM 145 China Unicom WCDMA (formerly Data-plans only) 147 China Mobile TD-SCDMA (formerly Data-plans only) 150/1/2/8/9 China Mobile GSM 153 China Telecom1 CDMA 155 China

    min $50 / hr
    min $50 / hr
    0 竞标

    We are looking for solution like a traditional GSM or CDMA VoiP gateway. This project will be separated in two parts. One is mobile application and another one is registration server. The Mobile application will register to a server and accept call from that server with IXA or SIP protocol. After that call will terminate to a GSM network. (this part

    $190 (Avg Bid)
    $190 \u5e73\u5747\u62a5\u4ef7
    7 竞标

    We are looking for the person specialized in GSM CDMA LTE mobile enhancers / boosters. The perfect candidate working background should be in Mobile Providers company or related field which has ever dealt with antennas and signal boosters. The job is for customer support for signal boosters users by helping them to install product and make it work

    $486 (Avg Bid)
    $486 \u5e73\u5747\u62a5\u4ef7
    4 竞标

    GSM is the most wide spread mobile communications system in the world. However the security of the GSM voice traffic is not guaranteed especially over the core network. It is highly desirable to have end-to-end secure communications over the GSM voice channel. In order to achieve end-to-end security, speech must be encrypted before it enters the GSM

    $763 (Avg Bid)
    $763 \u5e73\u5747\u62a5\u4ef7
    6 竞标

    ...through matlab simulations first then experimentally the performance of uniquely decodable ternary code sets for highly overloaded synchronous Code-Division Multiple Access(CDMA) systems in underwater acoustic scenarios. The underlying main challenge is to design and experiment advanced receivers that could potentially mitigate the high multipath and

    $502 (Avg Bid)
    $502 \u5e73\u5747\u62a5\u4ef7
    6 竞标

    ...study through Matlab simulations first and then experimentally the performance of uniquely decodable ternary code sets that can provide many more users then the conventional CDMA ternary codes sets. The main challenge of this project is to design and experiment advanced receivers that could potentially mitigate the high multipath and Doppler effect present

    $916 (Avg Bid)
    $916 \u5e73\u5747\u62a5\u4ef7
    8 竞标

    ..."NRApay" you can recharge your prepaid mobile online, do DTH recharge, Pay Utility Bills, do Online Money Transfer. Its One stop solution for all financial services.. Prepaid Recharge for all major India's top cellular services is available here. Apart from GSM phone recharge, Online recharge is also available for CDMA prepaid cellphones.

    $162 (Avg Bid)
    $162 \u5e73\u5747\u62a5\u4ef7
    7 竞标

    The Freelancer must be a native Spanish speaker from Latin America, and must know WordPress. Here is the article to be translated from English to Spanish: htt...native Spanish speaker from Latin America, and must know WordPress. Here is the article to be translated from English to Spanish: [login to view URL]

    $20 (Avg Bid)
    $20 \u5e73\u5747\u62a5\u4ef7
    41 竞标

    I bought a used SAMSUNG Galaxy Tab S 10.5 LTE US CDMA SPRINT tablet (SM-T807P). This device works in CDMA networks but I need it to work in GSM networks (GMS / HSDPA / LTE). I'm outside US. I have the MSL code and the device is already rooted (CF-Auto-Root), unlocked and debranded (idoneapps app). In addition with a custom recovery flashed (TWRP)

    $22 (Avg Bid)
    $22 \u5e73\u5747\u62a5\u4ef7
    5 竞标
    Change of career 已经结束 left
    已验证

    I need few answers for topic.I am basically network engineer, shifting to Telecom Engin...this technology.I have interview ,so need to prepare for those answer. 1- Manager baghto bolla 2- Lte cdma 3-Handover reselections 4-Sip call flow 5-Earfcn downlink 6- Lte master information block 7- Types of registration in cdma 8-Tracking area update

    $28 (Avg Bid)
    $28 \u5e73\u5747\u62a5\u4ef7
    4 竞标
    WMAC DESIGN 已经结束 left

    Aim The aim of this project is to design a Medium Access Control (MAC) protocol for a set of low power wireless (mobile) nodes that have to communicate with a wireless access point. Your design must meet all the objectives required and/or desired by the company. In addition, you are requested to provide critical analysis and adequate justification

    $210 (Avg Bid)
    $210 \u5e73\u5747\u62a5\u4ef7
    1 竞标