Voice over Internet Protocol or VoIP refers to a host of transmission technologies meant to deliver voice communications over IP networks that include packet switched networks and Internet. VoIP systems include communication services such as facsimile, voice, and voice messaging applications. A number of firms are shifting to this system to promote a cost effective medium of communication. You can hire an expert who can help your firm to leverage the potential of this new system. Just post a job today! Hire VoIP Developers

Filter

My recent searches
Filter by:
Budget
to
to
to
Skills
Languages
    Job State
    750 jobs found, pricing in USD
    IDF closed setup Ended
    VERIFIED

    Local resource only, please. Location: Moscow Rack&Stack and help a remote engineer to turn up below equipment in IDF: 3x 48 port Cisco switches 3 x Cisco routers 1 x console server 4x desktops 8x monitors 4x IP phones 2x UPS

    $496 (Avg Bid)
    $496 Avg Bid
    4 bids

    asterisk with CRM integration , which can popup and make calls out

    $451 (Avg Bid)
    $451 Avg Bid
    5 bids
    Server Support Ended
    VERIFIED

    We are looking for Server Experts we need to manage Servers like: Windows Servers Remote Desktop Services Skype For Business Exchange Servers Proxmox Servers (linux) Asterisk Servers Linux Plesk Server linux PfSense we are offer a great team :-) a good support for you and a big server playground for you.

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    49 bids
    Buzón de voz Ended
    VERIFIED

    Se requiere grabar Buzón de voz profesional en español y con acento amigable y muy neutral.

    $22 (Avg Bid)
    $22 Avg Bid
    45 bids

    Hi, I'm looking to develop a mobile application using Android as IOS that support the following features : 1- Records all I/O GSM calls. 2- Records all I/O VoIP calls. 3- Show history log for both indexed by type (GSM/VoIP). where VoIP could be whatsapp, Viber.. 4- Users can search any mobile number and return related info about if available like TrueCaller (I'll provide the needed API's). 5- User can white list and activate a feature for a set of mobile numbers, if they called a number of times with no response, the app shoot an alert SMS back to the caller mentioning the Geo-location of the handset. The mentioned features will be separated by free and premium

    $2385 (Avg Bid)
    $2385 Avg Bid
    24 bids
    Mikrotik Expert Ended
    VERIFIED

    Need Mikrotik Expert Now to assist with SIP Audio QoS Issue - RB2011UIAS-2HND-IN. Some minor cut out of audio. Looking for someone who can start now, access firewall via my Teamviewer.

    $134 (Avg Bid)
    $134 Avg Bid
    8 bids

    Configure Freepbx • Install Free PBX • IVR System • IVR Menu • Call Queue • Configure SPA3102 FXO (digital line) • Reporting • Number of Daily incoming calls • Number of daily outgoing calls • Number of Missed calls • Average call per hour • Record all incoming calls only

    $285 (Avg Bid)
    $285 Avg Bid
    11 bids

    Me interesa crear un modulo para issabel pbx o asterisk para registro e ingreso de visitantes a conjuntos residenciales que soporte troncal sip

    $169 (Avg Bid)
    $169 Avg Bid
    5 bids

    Hello, Comsys voicemail applicaton is widely considered to be one of the best voicemail applications/platforms. Please see Comsys website - voicemail description, here: [login to view URL] Unfortunately, their pricing prevents many start-up service providers from using it. Your job is to study Comsys features and use open source software to duplicate those features on a different software application. If you are knowledgeable about this subject, then you know you have 3 or 4 different options. If you have any questions please feel free to ask.

    $541 (Avg Bid)
    $541 Avg Bid
    5 bids

    I have a CISCO 7970 VOIP phone which is running SCCP firmware. I need to chang it to a SIP firmware.

    $49 (Avg Bid)
    $49 Avg Bid
    13 bids

    requiero un softphone para a2billing como el de movisnow que permito codec g729

    $403 (Avg Bid)
    $403 Avg Bid
    5 bids

    i am looking for some one who can make an android mobile app that could make a mobile call trunking application for both directions GSM to (IAX2/SIP) and vise versa. Requirements: 1- Work on any android mobile platform especially low price mobiles. 2- Register by SIP or IAX2 to any required server. 3- if the mobile have two SIM cards it should work for both and each by separate registration. 4- send calls from sip/iax2 to gsm and receive calls from gsm and send it to sip/iax2 5- Support codecs G711a , G711u, G729, gsm, slin and OPUS. 6- ability to change the mobile IMEI and mobile MAC address on request by API, 7- handle USSD codes and get all type of responses (popups, notifications and text messages). 8- CDR for each mobile with syncing or API to post the CDR in a any Database server.

    $1130 (Avg Bid)
    $1130 Avg Bid
    11 bids

    Need Mikrotik Expert Now to assist with SIP Audio QoS Issue - RB2011UIAS-2HND-IN. Some minor cut out of audio. Looking for someone who can start now, access firewall via my Teamviewer. Thanks, Gavin

    $28 / hr (Avg Bid)
    $28 / hr Avg Bid
    4 bids

    This project has a dozen items to be fixed but the main sticking point is ASSISTED TRANSFERS in Asterisk with WebRTC. Looking for somebody who knows the subject well because WebRTC seems to be in the way. The project can be divided into smaller projects or just this one item. Please see also the attached png-file. Also a long-term project but not for amateurs or beginners.

    $15 / hr (Avg Bid)
    $15 / hr Avg Bid
    9 bids

    I'm looking for someone to remotely setup the above infrastructure . In particular someone experienced with commercial setup and security hardening of VOIP servers. Below are details of setup: Project Description 1. Install Scalable Voip Platform Including Asterisk, a Sip Router a Billing System. 2. The installation will be on 2 VPS. Options include (Linode, Amazon EC, Digital Ocean, etc.) 3. Users can select and pay for DIDs online. DID selection could be by Country, Area Code, City Code or Country and State.. 4. The System will handle Prepaid Calling Cards allowing them to top op their accounts for DID usage and termination services. 5. Use Sip Router (Kamailio, Openser, Opensips) Load Balancing, Registrar, Routing outgoing calls by LCR for termination 6. Integrate a billing system (A2Billing or suggest other). If A2 Billing, code for email dunning or ability to download counts receivable (late payments) to an email platform with Dunning capabilities. Ideally, I would prefer to add dunning to A2 Billing. 7. Allow scalability 8. Integrate with CRM(Vtiger, SugarCRM or Other CRM of choice. Im open to your suggestions of other opensource packages) 9. Integrate with Mailchimp([login to view URL]) server 10. Sip Routers (Kamailio, Openser or OpenSips ) Split for incoming and outgoing calls 11. Asterisk Realtime (4 instances) 12. MySQL Database (Master/Slave) 13. System Testing Tools( your choice) 14. Security Tools(Your choice)

    $1481 (Avg Bid)
    $1481 Avg Bid
    9 bids

    Write glue or wrapper to get real time call data from asterisk to nodejs/c# through any open source library. End goal is to have a callback in nodejs/c# for incoming voice data and another api to send outgoing voice data.

    $430 (Avg Bid)
    $430 Avg Bid
    4 bids

    I need an experienced developer with solid experience with XMPP and IOS and Andriod. The person/team must be capable of designing and programming a chat/talk application using XMPP and SIP. Preferred Skills: Erlang, XMPP, UI/UX Design, Graphic Design Preferred Database: Mnesia / MySQL /Postgres Important Functionalities: Real-time connectivity / Real-time messaging Group messaging Individual messaging / voice call&video chat File sharing Presence indicators Location sharing Search Social Functionalities: moment / post / like&comment&report / Stories etc... Friend list/contact list Again the team must have solid development experience with xmpp, SIP and smartphone client development. At the end of the project developer must provide well document code and user guides. There will be possibilities of further engagement to add more features.

    $7969 (Avg Bid)
    $7969 Avg Bid
    84 bids

    I need someone who can setup an IVR Blasting system for me for France.

    $282 (Avg Bid)
    $282 Avg Bid
    3 bids

    we have a panasonic PABX KX-TDE600, having slight issues with the integration with TMS (call Accounting System)

    $388 (Avg Bid)
    $388 Avg Bid
    1 bids

    Hey everyone, I'm looking to setup an asterisk server to be connected to a MySQL DB and work on the Asterisk Realtime Architecture. I also want my server to be set up for multi tenant so I can host many companies PBX on this one Asterisk server. Must have experience in this! Not looking for someone to learn while trying to accomplish this and give me a buggy server. I want this server to be configured with all the modules so I can add premium services later. Like recording and visual voicemail so everything must be controlled and logged in a database. I want to have the fax module installed as well as connectivity to Google Voice and all those other add-on modules. The multi tenant system must have the ability to maintain complete separation of all companies. Including the internal extensions should not connect to other companies extensions. There are multiple ways to accomplish this but whatever approach you'll choose I need it to be with top security from being hacked into other companies. I also want you to set up for me a basic dialplan application for internal use. This will be added to all companies with an internal number to dial in to access it. Every extension will have a separate pin to log in to that menu. On this menu there will be the option to reset the pin, listen to voicemails, setup meetme with their cellphone numbers and disable it, turn do not disturb on and off, start and manage conference calls. This is only a first in a long list of asterisk projects I'm going to need help with. I'm developing a very unique hosted VoIP company and will need a lot of help in building it to the full extent. Right now I need these basic features and setup ASAP and I know for an experienced Asterisk developer this will not take long to develop as I'm an asterisk developer too I just don't have the time. I expect to pay a reasonable price for this as I know what really goes into developing this. Please don't message me unless you read my requirements and are confident you can fulfill my needs with the most perfection and professionalism. If I pick you and you turn out to be the right person I will officially welcome you to my team for developing my VoIP company and you'll have a long term relationship with me with a lot of more work to come.

    $1121 (Avg Bid)
    $1121 Avg Bid
    18 bids

    Outbound calling for Kofo. I will provide call list and call script.

    $13 / hr (Avg Bid)
    $13 / hr Avg Bid
    1 bids

    We are looking for a Network Engineer for occasional installation and support projects in and around the Dallas/Ft Worth area. Ideal candidate is a Freelancer who does contract work and is open to being our face in the field. We are looking for a long term relationship for ongoing projects, not a one off. Cisco and Meraki routing and switching proficiency a must.

    $66 / hr (Avg Bid)
    $66 / hr Avg Bid
    9 bids

    sound knowledge on devops tools and all the scripting languages. Immediate need please leave me a msg so we can discuss further,

    $178 (Avg Bid)
    $178 Avg Bid
    5 bids

    I would like someone to setup a Freepbx server on google cloud platform that allows remote extensions. 1. Use either Centos (as is Freepbx distro) or Debian 2. Install xtables (if use centos instead of debian)

    $63 (Avg Bid)
    $63 Avg Bid
    10 bids

    Hello, I need someone to build an auto dialer for me to work with Twilio. I have already written a script for it to make 1 phone call in python, however this is what I need it to do. 1. Upload a CSV file with a persons "name" "address" "property name" "property address" and then up to 10 phone numbers for that person. I will be uploading around 1000 rows like this. 2. It should highlight the row that it is currently calling 3. Options on there are to "start" where it will start dialing the numbers one at a time, when i hang up it dials the next one immedietely. I should be able to "stop" the auto dialer. 4. I should be able to add a "note" and color code each phone number to tell if it is a good number or not etc with "red" "yellow" "orange" "green" Thank you, please read the information and let me know how you will be able to do this. Without a reply on reading the project I will not reply to your comment.

    $213 (Avg Bid)
    $213 Avg Bid
    10 bids

    Requiero un AGI que agregue a una tabla en la base de Mysql los CID que se repitan mas de "n" veces en un día y a su vez se guarden en un CSV al final del dia. Esto antes del flujo requerido en la llamada.

    $393 (Avg Bid)
    $393 Avg Bid
    11 bids

    Hi, We have a multi-tenant pbx with asterisk. Current system is not elastix or freepbx. We need this specifications: Step 1 : Professional Web Service with JSON/NODEJS/PAMI/PAGI/ARI etc... One Way Functions : (Web service will send data) - Send CallerID (Customer will set an URL from pbx panel. Web service will send about call status(Extension ringing/answered) for per extension)(Calls may be get from queue or IVR or another, i need to alls) - Online Calls (Customer will set an URL from pbx panel. Web service will send online calls) - Online Extensions' Status (Customer will set an URL from pbx panel. Web service will send online extensions' status) - Unanswered Call Report (Customer will set an URL from pbx panel. Web service will send unanswered calls) Two Way Functions : (Customer get data) - Callback (Call to extension firstly and if extension answer, system call to target number.) - Reverse Callback (Call to target number firstly and if extension answer, system call to extension.) - Remote Spycall with web service - Remote DND Activate/Deactivate - Pause for Queue Status - Callerid check for extensions - Online Calls - Online Extensions' Status - Call Reports - Call Voice Record Step 2 : - Voice Record Backup (Customer will add ftp account informations on pbx panel and system will send voice records to ftp or google drive) - Text To Speech (I must to use this tts on everywhere in dialplans, in ivr sounds etc...)(We can use Yandex or Google for this, Yandex good converting Turkish language) -- We will a phone book and customer will add contacts to this. And When incoming call system will say name surname from this list) -- Customer will add an URL on pbx panel. System will check and say name surname or invoice remember on incoming calls with callerid) - Payment with Credit Card on IVR with TTS (We can do a plan for this function) Step 3 : - Auto/Predictive Dialer (From pbx panel and from Web service) -- Like as bulk sms -- 2 factor (Auto and predictive.) -- We can do a list for functions. Step 4 : - Reservation/Appointment Remember Service (Like as auto dialer/Vpoll). From pbx panel and from URL with cron) -- Customer can upload data and voice. System call thats with channel limit. Called person answered with dtmf 1/2 or repeat again. After finish send an email report. -- Customer set an URL and time from pbx [login to view URL] will import data from this link and create, call and report. Step 5 : - Satisfaction Survey (Like as Step 4. Auto and Manuel) -- Auto : If customer activate it, system will call incoming callerid number and say 1-10 between. -- Manuel : Will work like as Step 4 All specifications will add to our system with dialplans. If you have any suggest, we can talk about it. Best Regads.

    $1223 (Avg Bid)
    $1223 Avg Bid
    19 bids

    We need a custom report from Queuemetrics that Queuemetrics does'nt have the options to do on it's own. Needed php + asterisk + queuemetrics knowledge.

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    6 bids

    multy account auto dialer whit biiling and incoming calls call ceter

    $542 (Avg Bid)
    $542 Avg Bid
    12 bids

    We have a custom php sign-up that upon sign-up/submit needs to add extension and outbound route with credentials from $DB and sign-up using server json GET or other method.

    $159 (Avg Bid)
    $159 Avg Bid
    13 bids
    Asterisk Consultant Ended
    VERIFIED

    Hi, We are a cloud telephony startup in India. We have setup asterisk for our operations but we are not able to scale up as the traffic is increasing day by day and it seems asterisk is unable to handle it. Asterisk kills frequently. We need consulting in debugging the root cause of the problem and develop proper architecture along with right hardware requirements. -Anuj

    $29 / hr (Avg Bid)
    $29 / hr Avg Bid
    14 bids

    I already setup go autodial 3 and able to logon to its web interface but my problem is that my calls are not going through. Maybe there is a problem in my carrier setting I need to set it for voice broadcast campaign

    $127 (Avg Bid)
    $127 Avg Bid
    14 bids

    I need to customized 3cx Bitrix 24 windows client script, it's in c + currently what script does is when 3cx gets call it opens bitrix24 and creates new contact if person is not in system what i would like system to do create leads instead of contacts

    $2819 (Avg Bid)
    $2819 Avg Bid
    5 bids

    Build Android application make mobile phone act as GSM to voip gateway To connect with Asterisk PBX We needs to use an android cellphone as an asterisk channel/Gateway. His aim is to make phone calls using his Asterisk PBX through a cellphone running android. It aim to make phone calls using Asterisk PBX through a cellphone running android. call in call out i will make calls from my PBX and calls will go through the phone ( in and out ) through sim card from phone ... So all coming calls to sim cards will go to PBX and PBX can use this number as Line to call from **** Note this is small budget project ******** Read & Search what is GSM to VoIP gateway before submitting

    $2275 (Avg Bid)
    $2275 Avg Bid
    6 bids

    Hello Friends, We are India based and looking some good freelacer or company who can build a mobile sip softphone for us. that softphone must have all call features and locally store call details on device like dial/missed/received call. Softphone must be able to support audio and vedio calls with suitable codec. G729 is must for this. Users will be able to add multiple SIP accounts. if you already developed this kind of soft-phone, share the demo link. if you are from Meerut/Delhi or near by Delhi NCR we will provide you first prefance to him/her. for reference "Zoiper" and "Xlite" you can check. before bidding see the attachment.

    $444 (Avg Bid)
    $444 Avg Bid
    8 bids

    Zoho CRM Phonebridge adapter supports 1.6 Elastix version however I have the Elastix 2.5 with Asterisk 11. The task is to modify the Phonebridge adapter to work and successfully make a call with Asterisk 11 or newer version.

    $168 (Avg Bid)
    $168 Avg Bid
    6 bids

    BPO international Voice process, inbound project.

    $400 (Avg Bid)
    $400 Avg Bid
    10 bids

    I need someone who understand Mikrotik routers & RouterOS in detail to help me build an offering to business customers needing good quality router + internet The work needed for the mikrotik include: - PPPoE setup - QOS to prioritise voip traffic - Zero touch provisioning setup / recommendation - TR69 setup - extract reporting - enable firewall rules - failover to 3g/4g - dual wan failover If you're good, there would be ongoing projects

    $30 / hr (Avg Bid)
    $30 / hr Avg Bid
    20 bids

    I need a setup of 6 Phonenumbers in a given FreePBX installation. In addition to that i need the configuration from 2 YeaLink IP Phones atached to it, The numbers must be availlable throw this fones in a specific order. The phone numbers are provided by the telecomunication company via a FritzBox Router. The Job is needed to be axcecuted at the end of next week, but i will plan this before. So i need propper planing before.

    $43 (Avg Bid)
    $43 Avg Bid
    16 bids

    Hello I looking for Softphone (mobile dialer) for Android and iOS. Thanks

    $502 (Avg Bid)
    $502 Avg Bid
    42 bids

    I'm offering services for Comodo's Advanced Endpoint Protection. I need someone who is experienced in cold calling and an expert in sales. I also need someone that speaks English with proper American accent. THIS IS A COMMISSION-BASED POSITION FOR A START UP COMPANY. EVERYONE IS ENCOURAGED TO APPLY

    $134 (Avg Bid)
    $134 Avg Bid
    6 bids

    We're looking for a ViciDial Tech / Installer to install a system on a dedicated server that we already have. Is there someone out there who actually KNOWS what they're doing? Who will reply to messages and not disappear when its time to get started? I am looking for the services of a programmer or Team that has experience installing and configuring a ViciDial system. The install will require some custom questions and answer fields to be placed, so that the agent can read some questions and enter the answers directly into the system. The installation and configuration will be a one-time job, but will develop into a long-term business relationship going forward since we will need a Tech to be available from time to time. Please be available to chat online to discuss further after submitting an offer Please only respond and bid IF YOU HAVE PROVEN VERIFIABLE EXPERIENCE. Please don't respond to this job if this is your first time doing this, or you're still learning how. A bid without a proposal will be Ignored

    $11 / hr (Avg Bid)
    $11 / hr Avg Bid
    10 bids

    Llamar desde esta consola a mis clientes de excel. Que se pueda llamar, colgar, silenciar (mute), entre otros básicos. Que se pueda calificar y dejar mensajes en la grabadora de voz de la persona. Marca Grandstream Modelo GXP1620

    $170 (Avg Bid)
    $170 Avg Bid
    8 bids

    what l need is a call center solution with goautodial opensource. We currently have a Ei line, and are looking to purchase a server with E1 card. what we are after in the solutions is 1. call center with CRM to create inbound ,outbound calls and campaigns 2. Reports 3. QA's 4. IVR - ( auto response, record messages) We are looking to extend this service to offices at different locations, so a call plan will also be discussed.

    $423 (Avg Bid)
    $423 Avg Bid
    14 bids

    Hello, Adapt or rework a Call-forwarding & Voicemail Twilio application for a different carrier - Voip Innovations. The Twilio application is here: [login to view URL] You can use the following Voip Innovation's documents: [login to view URL] [login to view URL] Please contact me with any questions. Thank you.

    $2726 (Avg Bid)
    $2726 Avg Bid
    29 bids

    NEED CALL CENTER VENDORS WHO BUY INBOUND AND OUTBOUND LEADS !!

    $563 - $1126
    $563 - $1126
    0 bids

    A guide on how to make SIP/VOIP http proxies for [login to view URL] and [login to view URL]

    $156 (Avg Bid)
    $156 Avg Bid
    4 bids

    Non voice based BPO is going to start for which workers are needed.

    $4 / hr (Avg Bid)
    $4 / hr Avg Bid
    6 bids

    Top VoIP Community Articles