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 VoIP Developers

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    28 trabalhos encontrados, preços em USD

    Hello, the project is based in develope a configuration into a CISCO ASR1002 to customize a SIP/SS7 signiling switch. The SS7 signiling is received in TDM/E1 using a Channelized STM1 Interface connected directly to the Operator, inside the STM1 the first 8 E1's has the SS7 link & CIC's. The system will have to convert to an ITP / Point Code for SS7 signaling as a part of the final s...

    $40 / hr (Avg Bid)
    $40 / hr Média
    1 ofertas

    I need software application for voice broadcast,survey,multinant with billing.

    $3427 - $6854
    $3427 - $6854
    0 ofertas

    I'm looking for someone with a high level of English to do some cold outbound email outreach to try and sell advertising space on a website I have. Could involve calls or emails. But they would need to compile lists of potential customers, devise scripts and email patterns and then go out and sell the ad spaces.

    $43 / hr (Avg Bid)
    $43 / hr Média
    7 ofertas

    Se requiere el desarrollo de una aplicación web que interactúe con un conmutador IP dentro de la red de datos (Asterisk o Freepbx) para realizar la marcación de forma masiva, por medio de un archivo txt o con los teléfonos a marcar e incluir la opción de reproducir un audio editable. es necesario poder especificar la hora de inicio de marcación y fin, co...

    $483 (Avg Bid)
    $483 Média
    6 ofertas
    Auto Dialer Script for Freepbx 6 dias left
    VERIFICADO

    I'm looking for a resource to develop a script to Auto dial given number list from a CSV file and play a voice clip. I need to get the list of successful numbers and failed / no answer numbers report also.

    $233 (Avg Bid)
    $233 Média
    6 ofertas

    This project is about "ISP CRM" With freeradius, Asterisk and Network Monitoring Capability which Support Vendors [Mikrotik, Huawei, Cisco, Juniper and Star OS]. Required Features and Modules # Admin Control Panel (Web + Android ) * User Management * Plan/Tariff Management * Finance Management >Invoice generation and payment processing >Recurring billing en...

    $13 / hr (Avg Bid)
    $13 / hr Média
    1 ofertas
    issabel click2call 6 dias left
    VERIFICADO

    i have subscribe for the click2call from issabel pbx and the script working fine and i can receive calls from the website but there is no voice i can receive calls from out of saudia arabia i need to know what is the problem BR

    $130 (Avg Bid)
    $130 Média
    3 ofertas
    looking for voip service 6 dias left
    VERIFICADO

    i am looking for voip setup to make call for premium rates number

    $19 (Avg Bid)
    $19 Média
    2 ofertas

    Searching for the valuable software house who has exp on developing iOS and Android Mobile application on SIP protocols with the help of Admin panel and Must have experience on asterisk or elastix. Deep Project details will be provided over the PM.

    $1125 (Avg Bid)
    $1125 Média
    10 ofertas
    cold caller 5 dias left

    looking for a cold caller for B2B calls

    $477 (Avg Bid)
    $477 Média
    6 ofertas

    I have a couple of Android POS devices (Android 4.4) that will be use for sales. I, however, want to restrict the following android functions before I deploy: Airplane Mode Debugging Features Factory Reset Outgoing Calls Safe Boot Uninstall Apps USB File Transfer

    $43 (Avg Bid)
    $43 Média
    3 ofertas
    Issabel PBX Sip Integration 5 dias left
    VERIFICADO

    I would like to get the SIP trunk configuration for goTo and Nextiva sip provider

    $45 (Avg Bid)
    $45 Média
    3 ofertas
    Freepbx Configuration and Setup 5 dias left
    VERIFICADO

    We have installed Freepbx , Now we need setup , complete configuration We are using Dinstar GSM gateway , will be using this with freepbx Experience in GSM gateway configuration will be preferred

    $131 (Avg Bid)
    $131 Média
    10 ofertas

    Configuration and support for PBX Siemens HIPATH 4000 - for migration and interconnection with PBX Asterisk

    $23 / hr (Avg Bid)
    $23 / hr Média
    6 ofertas

    I have installed OpenSIPS 3.1 server with UAC, CP and rtpproxy on Debian 9 server with 2 network interface. (Asterisk server - OpenSIPS - Service Provider) Now I am able to establish calls and also registering to my service provider. I need someone's help to fix the rtp traffic and routing.

    $100 (Avg Bid)
    $100 Média
    1 ofertas

    First VLAN: (2x ethernet + wifi) Full OpenVPN masquerading from Internet point of view Second VLAN: (2x ethernet) No OpenVPN at all (bare WAN connection) . I am linux admin, but I have no enought experience with networks and cannot configure it on my own. I would like to understand how to conifgure it so project includes both configuring and explaining why it works :)

    $105 (Avg Bid)
    $105 Média
    10 ofertas
    Intercom system for a building 4 dias left
    VERIFICADO

    A list of apartments and their owners on a screen. By pressing a phone button, you will call that person. If the person wants to open the door, he presses *9 or something like that. All on a web page. There are JavaScript sip clients. The phone part is by asterisk installed on the same raspberry pie using google voice. [fazer login para ver a URL] [fazer login para ver a URL]

    $213 (Avg Bid)
    $213 Média
    3 ofertas
    Freepbx Expert 4 dias left
    VERIFICADO

    Necesito alguien experto en Freepbx para configurar una centralita que ya tenemos montada pero que está con diversos problemas.

    $125 (Avg Bid)
    $125 Média
    5 ofertas
    ASTERISK IVR DETECT 4 dias left
    VERIFICADO

    Hi, I need to build a sytem that can detect IVR when you call, record a part of the ivr and detect which messages is, with previus record files into the server. The target is to to avoid IVR balance, IVR of blocked sims and detect which record has been detected. We need the build in Python, asterisk.

    $210 (Avg Bid)
    $210 Média
    5 ofertas

    Need to Upgrade Freepbx from 13 to current and install: SIP Poe Mullion Video Keypad Intercom 8039 8063 SIP Interface Module (IP Relay controller) for Algo door control only. 8063

    $259 (Avg Bid)
    $259 Média
    3 ofertas

    Необходим человек который оперативно сможет рассказать как и что настраивать в VOS3000. В первую очередь необходимо установить SIP Header Diversion для поставщика услуг

    $15 - $25 / hr
    $15 - $25 / hr
    0 ofertas
    PBX Greeting 2 dias left
    VERIFICADO

    Welcome messages to be uploaded to a PBX for a client Requirements are as listed. Format: WAV Channel: Mono Bit rate: 8 kHz Sampling: 16 bit If you can not provide them in this format, I can not hire you. The messages will be as follows, actual business name and actual business hours will be provided once I hear some of your samples. Message 1: "Thank you for calling [business name], some...

    $33 (Avg Bid)
    $33 Média
    15 ofertas
    3CX configurations -- 2 1 dia left
    VERIFICADO

    Dear Freelancer i am not expert in 3cx, looking for someone sove the issue of inbound calls, the Outbound calls are working fine not issues, but when someone calling from out its simple disconnet the call and not reach to 3CX

    $47 (Avg Bid)
    $47 Média
    6 ofertas

    I have a app that basically a calling app and I am using a asterisk server which is setup at my system. I face some issue during integration of calling api to in mobile app. I need some one who have experience with asterisk server and please also share your past apps you have done . If you did this i have lots of other work in queue for you. :) Thanks

    $185 (Avg Bid)
    $185 Média
    4 ofertas
    Push-To-Talk 1 dia left

    looking for developer who have experience in push to talk over internet platform including application (ios-Android) using GPRS, 3G, 4G and WiFi network infrastructure, i want to build solution provides core functions of traditional two way radio: instant voice communications, integrating with advanced features like multimedia messaging, video and photo uploading, live video streaming, integ...

    $1101 (Avg Bid)
    $1101 Média
    5 ofertas
    Dialer GoAutodial 20 horas left

    I need a Goautodial V4 or V3 based dialer with an ivr. with hosting

    $153 (Avg Bid)
    $153 Média
    6 ofertas

    We have a social media app using open source linphone SDK for android and ios SDK for voice. Need voip developer to enable video in existing system and autoscalable solution. Using asterisk on backend rabit MQ

    $1250 (Avg Bid)
    $1250 Média
    2 ofertas

    En la eth0 esta configurada la LAN con salida a Internet para Datos, necesito configurar eth1 para salir a internet para Voz IP

    $30 - $250
    $30 - $250
    0 ofertas

    Artigos da Comunidade dos Principais VoIP