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! Contratar a VoIP Developers


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    34 trabajados encontrados, precios en USD

    We offer a Call Centre Solution, Hosted PBX, DID number services etc. and we are looking for a Sale Manager that can convert up 200 Leads in any of our services. The opportunity is huge for any one capable of handling this.

    $1000 (Avg Bid)
    $1000 Oferta promedio
    1 ofertas
    Forwarding portal 6 días left

    Need to Modify and setup a forwarding portal on softswitch

    $450 (Avg Bid)
    $450 Oferta promedio
    5 ofertas
    Abo A.Aziz 5 días left

    Cisco Catalyst 9500, Catalyst 9300 switches, FortiGate-100F configuration work in Saudi Arabia - work can not be done remotely its a company policy

    $2558 (Avg Bid)
    $2558 Oferta promedio
    17 ofertas

    Radiusd didnt bill a call after a hangup 18 while call was active and did 900 sec only experts

    $15 (Avg Bid)
    $15 Oferta promedio
    1 ofertas
    Vicidial Installation and Setup 5 días left

    Hi, Need someone to install Vicidial and Setup Vicidial

    $57 (Avg Bid)
    $57 Oferta promedio
    8 ofertas

    Details: FreePBX Polycom 450, 650 & VVX 601 We have staff that seem to be cold transferring calls back into the queues. We need to disable the transfer button on the screen when a call is ringing. They should not be able to transfer the call back into the queues. All phones are configured using OSS Endpoint Manager for their configs.

    $10 - $30
    $10 - $30
    0 ofertas

    I'm looking for freelancer who is able to config FreePBX and USB dongles for voip termination (mobile). I have installed freepbz on my VM just need someone to config huawei e303 modem e303ms-2 to make calls via VOIP

    $35 / hr (Avg Bid)
    $35 / hr Oferta promedio
    1 ofertas
    spoof server 4 días left

    Need a spoof server built that can be implemented into a twilio based call bot that functions and gives results via telegram

    $491 (Avg Bid)
    $491 Oferta promedio
    6 ofertas
    VOID_SIP_BOD 4 días left

    Need a guys to configure voip server

    $13 / hr (Avg Bid)
    $13 / hr Oferta promedio
    3 ofertas
    NFT Project 3 días left

    Good morning. We are a team looking for a full-stack dev on a NFT project. We have an artistic team, we are looking for a dev to create both front-end and back-end side, including the website and the candy machine on ETH blockchain. Whitelist and Presale needed. Voice chat for meetings. Looking forward to work together !

    $41 / hr (Avg Bid)
    $41 / hr Oferta promedio
    44 ofertas

    Hello Freelancers, We have linphone based android and iPhone application. Both apps are working fine. But the issue is background calling. Means If app closed then its not working. so we are looking for the developer who can help us to achieve it via push notification. We are using Asterisk based system. Thanks

    $371 (Avg Bid)
    $371 Oferta promedio
    5 ofertas
    CIsco Jabber 3 días left

    Need someone to troubleshoot why Cisco Jabber has no calling services.

    $88 (Avg Bid)
    $88 Oferta promedio
    6 ofertas

    This project is to setup a web SMS management software and gateway (Gammu + PlaySMS) along with Asterisk (freePBX) system that also uses the USB modems for calls in and out. The project must support SMS in and out with multiple usb modem dongles and sim cards simultaneously with calls in and out

    $258 (Avg Bid)
    $258 Oferta promedio
    6 ofertas
    Avaya support 2 días left

    Avaya G430 media gateway support with Aura messaging Lic and call center license

    $5 / hr (Avg Bid)
    $5 / hr Oferta promedio
    1 ofertas

    Looking for some one who can add sms system in my broadcasting dailer FreePBX N Astrisk Pinger. Like as soon as call completed, whichever connected with some duration, should send automatically sms to that called number. Lines, CentOS, PHP, Astrisk, Mysql knowledge people can do it.

    $13 (Avg Bid)
    $13 Oferta promedio
    3 ofertas
    I need a vici dial support expert 2 días left

    I need very simple vicidial tasks comopleted every so often and i need a good support agent with YEARs of experience with vici.

    $198 (Avg Bid)
    $198 Oferta promedio
    9 ofertas

    Need online training for ccnp enterprises Enarsi ..one to one

    $312 (Avg Bid)
    $312 Oferta promedio
    7 ofertas
    Voicemail recording for business 2 días left

    I need a voicemail recording for my driving school. Recording time would be less than 30 seconds.

    $64 (Avg Bid)
    $64 Oferta promedio
    36 ofertas

    Looking for Cisco Call Manager Latest slides

    $15 (Avg Bid)
    $15 Oferta promedio
    2 ofertas
    Build a new Issable Image 1 día left

    Scope of work : all the extension, inbound routes and outbound routes (outgoining calls should be made from 4 different phone numbers - users should be able to choose phone number through dial prefix) 2. We have SIP Trunks that needs to connect to the new Issable image. 3. Follow the image for the IVR flow and create the IVR flow 4. Creating Ring-groups 5. Configuring Standard firewall. Sip traffic should only traverse the firewall if the other side of the call is outside of the office or at a remote location accessible by VPN 6. Make new recordings according to the script provided. 7. Create a xml file for contacts which will be integrated to the system so that when contact added / removed from the file it will be automatically refreshed. 8. A shared voicemail for sales and tech accessi...

    $818 (Avg Bid)
    $818 Oferta promedio
    8 ofertas

    I need a Call Routing Platform like Ringba or Alivepbx, where I can add customers by there phones for Pay Per Call (PPC) to distribute calls for them, I need to have an option to put Cap for the calls they will receive and the number of concurrent calls.

    $612 (Avg Bid)
    $612 Oferta promedio
    6 ofertas

    looking for someone who can set up server with Indian SIP domestic calling service

    $40 / hr (Avg Bid)
    $40 / hr Oferta promedio
    1 ofertas

    looking for some one who can set up server with Indian SIP domesting calling service

    $13 / hr (Avg Bid)
    $13 / hr Oferta promedio
    3 ofertas

    i have a multi-tenant fusion pbx system with around 400 extension and i am facing issues with connectivity and voice breakage and also install a good event capturing system like homer(or whichever is good).

    $80 (Avg Bid)
    $80 Oferta promedio
    3 ofertas
    Chat and voip app 1 día left

    Building application for secure communication Group Video Voice We have app ready .. but we are facing issues of call and stability and quality we need help for getting stability and efficiency for the app. We have issues with voip and Notifications as well

    $3965 (Avg Bid)
    $3965 Oferta promedio
    37 ofertas

    looking for a technical person who has the ability to manage an IP PBX server Self Managed Virtual Private Servers hosted on a cloud platform.

    $13 / hr (Avg Bid)
    $13 / hr Oferta promedio
    3 ofertas
    Develop VOIP portal for end users 20 horas left

    Develop Voip portal based on PBX Cloud for forwarding calls for our customers use.

    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    6 ofertas

    Looking for a skilled developer to help develop custom features and apps to work in hand with FreePBX. This would be an ongoing relationship, as our customer base is constantly putting in feature requests. First project would be to develop an application that links to PBX users and utilizes SIP Trunks for sending and receiving SMS messages. Within the sending and receiving, we will need the ability to create groups for mass outgoing, but in a way that each end user is messaged individually so the responses only come to the sender and not to each member in the group. Additional projects will be discussed with the awarded developer.

    $32 / hr (Avg Bid)
    $32 / hr Oferta promedio
    16 ofertas
    Cisco Switch 13 horas left

    When running the command show interface status, we can see 3 vlans, but one vlan is not appearing or active, it seems the vlan is not accessible even when running. we need to config the 3rd vlan

    $16 / hr (Avg Bid)
    $16 / hr Oferta promedio
    34 ofertas

    We are looking for a developer to create a feature within an industry standard open source application. Any open source VoIP softphone will work as the platform for this feature. Details will be provided after an NDA is signed.

    $150 (Avg Bid)
    Acuerdo de Confidencialidad
    $150 Oferta promedio
    6 ofertas
    Asterisk Experts only 9 horas left

    to fix dial plan to do the following : 1) dial the trunk and ignore the first congestion from trunk because when we get congestion the call keeps flowing to the trunk so we want to ignore the congestion I get and keep the call when I put 2 dial command it works but I want to ignore that can we ?

    $55 (Avg Bid)
    $55 Oferta promedio
    10 ofertas
    create front end website whit 3cx 7 horas left

    hello I have a reception call service I am hired by companies to take care of their customer service. their client joins the company with whatapp - messenger -email - fax and other medium. what i need it a popup window they work whit 3cx. this popup is activated each time a communication channel is activated from the client to this company in this way our agents can respond to the company client with the correct information on popup we have information of the enterprise and a greeting message and adress email- employed ect... all inbound call we receice from 3cx the popup be activate you could use twillio or zapier or other integretion and need a billing systeme they will work whit 3cx

    $424 (Avg Bid)
    $424 Oferta promedio
    5 ofertas

    WE have VPN between two branches , and we have two Avaya IP office connected together ,we want someone to help us find the problem ,why site A can call Site B ,while site B cannot call site A ? please help ?

    $23 / hr (Avg Bid)
    $23 / hr Oferta promedio
    7 ofertas

    I need someone who can build ivr using twilio APIs. Full end to end call center solution.

    $335 (Avg Bid)
    $335 Oferta promedio
    5 ofertas

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