Voip Software Jobs

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Fixed-Price - Entry Level ($) - Est. Budget: $250 - Posted
I am looking for iOS VoIP App developer. I have an app that can make a calls via multicast and SIP. After ~3 minutes in standby app lost all connection, can't receive local push notifications and calls. Application working modes description. Right now app have 2 call modes: 1. Via multicast. App found indoor monitor with the same address in network and listen. When someone call from outdoor panel to monitor - monitor redirect call to all app that have the same apartment address. 2. Via SIP. App registering on SIP PBX or VoIP service, as panel, for example. In this mode all devices work as based SIP phones. All calls can be with video. This app developer before used quickhack to make app work in background - play empty mp3 file. App work in background, phone don't go to deep sleep and don't stop the app, so we can get all calls without any issues. Now Apple reject this quickhack and we can't push it to AppStore. Now app lost registration on monitor or PBX after 3 minutes in background and we can't get a call to app. Interesting, that if we test app in Xcode simulator - app work perfect and don't go to sleep. If we test it on the real device - it stop working after ~3 minutes, so we thing that issue in background mode. Before iOS 10 Apple had a special VoIP background mode for VoIP calls feature, but now this mode is deprecated, so we need to make it run in sleep/background mode with new VoIP API and receive push notifications via PushKit to make it work stable and stop losing connection. App written for iOS 7, maybe it's need to be rewritten to iOS 10. Application will be distributed via AppStore so it should be done without any quickhacks. Connections controlled by static library, sources is not accessible, for SIP calls used eXosip.
Skills: VOIP Software iOS Development
Hourly - Entry Level ($) - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Cold caller will be responsible to login to business database to access daily call list, list will change daily, cold caller will make 3-5 attempts per week to speak with homeowner, follow script and set appointment. After call attempt and/or contact cold caller will notate the database. Cold caller must be able to login into Line2 VOIP account and make calls from local number, and make calls at times that Eastern Standard Time residence would answer (9am-5pm EST). In addition be easily teachable, fluent in english and friendly.
Skills: VOIP Software English Microsoft Excel Social Customer Service
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Looking for an experienced hacker help me out with a pretty complex project. This job is 100% legal so you don't need to worry. I will provide more details once we start a conversation going. But I can say that this is a very challenging job and whoever gets it needs to be self-motivated and up for the challenge.
Skills: VOIP Software Asterisk C++ Computer Networking
Fixed-Price - Expert ($$$) - Est. Budget: $400 - Posted
have on site GRANSTREAM box plus a number of brandnew GRANDSTREAM handsets; have message prompts recorded as .wav files; have a PTSN line in place to assist with out bound calls; have inbound numbers booked through sonetel; also a sipcity Australia account for outbound voip calls; require at least 5 separate autoattendant setups installed; caller ID on outbound calls; features such as 'screened calls', 'queued calls'; ';message bank' and messages sent by email etc; teleconference etc; overflow back up calls routed through to back up SIP in Phillipines; handsets hooked through OUTLOOK so that call history etc kept etc; and calls can be dialled from within OUTLOOK contacts - do through TEAMVIEWER connection.... user ASTERISK/ ELASTIX software - set up system completely with basic instruction notes......
Skills: VOIP Software Asterisk Elastix VOIP Administration
Fixed-Price - Expert ($$$) - Est. Budget: $1,200 - Posted
We are looking for somebody who is able to configure FusionPBX in an HA environment on VPS servers following best architecture and security practices. The design goals are broadly as follows: * 99.9% availability * To be used in multi-tenant environment * End-users will have access to UCP * Currently require 10 concurrent calls, needs to be scalable to 100+ without total architecture redesign * Require one geographic PoP in Montreal hosted on OVH Public Cloud VPS * Seek to minimize monthly spend on VPS servers as much as possible while meeting design goals * Minimization of complexity to reduce ongoing management as much as possible as needs scale * Documentation of environment, configuration and technologies used The exact technologies used are up to you including database engine, use of OpenSIPS or not, etc. - we are open to all architecture suggestions. Point of contact on this project is reasonably technical. The VPS host (OVH) does support floating IPs if necessary. Assuming successful project and sales goals are met on our part, upgrades/administration/maintenance will be required as well as minor custom development as environment scales.
Skills: VOIP Software Freeswitch VOIP Administration
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
We are looking for experienced developer/development team with prior experience in developing SIP audio/video clients. Features required: - TCP or UDP SIP transport - Codecs: G.722, G.711u, G729, Speex - Remote phonebook synchronization - Remote provisioning - Branding - VoiceMail and VoiceMail Message Waiting indication - DTMF modes - STUN support for NAT traversal - SRTP audio and TLS encryption
Skills: VOIP Software Android App Development Android SDK API Development
Hourly - Entry Level ($) - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Have 2 small tasks that need to be done right away. Then standby for ongoing support. We will need to support the following: IP Office 9.0 and forward Definity and Aura from CM 3.0 and forward VM Pro Intuity (not required but nice to have) Avaya Session Manager
Skills: VOIP Software Avaya VOIP Administration
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
I am requiring an experienced Voip configuration expert using 3CX on Windows Server 2106. The current phones may need resetting and incorporating wireless land adaptor. Immediate start at acceptable pricing.
Skills: VOIP Software Microsoft Hyper-V Server VOIP Administration