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English
$
USD
I will develop latest linphone, voip, softphone, and calling apps with sip and esim
Adeoye
Level 1
5.0
5.0
About this gig
Looking for a top-tier developer to launch your custom Linphone-based VoIP softphone app with unmatched features? I've got you covered.
I specialize in creating white-label, secure, cross-platform VoIP apps (Android/iOS) with all the essentials: HD audio/video calls, group conferencing, instant messaging, push notifications, SIP trunk & eSIM support, auto-dialers, DID number integration, plus Twilio, FreePBX, and WebRTC APIs.
Feature List
- HD audio & video calls using top codecs (Opus, AV1, H.265, etc.)
- Group video conferencing with multiple display layouts
- Instant messaging with ephemeral messages, forwarding, reactions
- Secure E2E encryption (ZRTP, SRTP-DTLS, LIME, post-quantum)
- SIP trunking, DID number & eSIM integration
- Auto-dialer & multi-call management
- Push notifications & remote configuration
- LDAP/CardDAV address book sync
- White-label customization & cross-platform (iOS & Android)
Why you should choose me:
- Proven VoIP and Linphone expertise
- Strong security/encryption protocols
- Smooth cross-platform performance
Ready to launch your powerful, secure VoIP app? Contact me now to get started your custom Linphone project can be live within days!
Get to know Adeoye
Adeoye
VoIP Development, Linphone, SIP, eSIM, Flutter, Firebase, Mobile App Developer
Level 1
- FromNigeria
- Member sinceApr 2025
- Avg. response time1 hour
- Last delivery6 days
Languages
Spanish, English, German, Dutch, French
I’m a VoIP & Mobile App Developer with strong experience in Flutter and cloud based systems.
I help startups, businesses, and entrepreneurs turn their ideas into reliable VoIP solutions and mobile applications that actually work in the real world.
What I do best
Build SIP based VoIP calling apps and softphones (Linphone)
Develop cloud VoIP platforms, IVR systems, and call center solutions
Create Flutter mobile apps for Android & iOS
Integrate Firebase authentication, real time databases, and REST APIs
Implement bulk SMS, call routing and more
Send me a message and I’ll review your project
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
C chaoschampion
Repeat Client
United States
Approved, looking good
$200-$400
Price
13 days
Duration
F 
Seller's Response
Helpful?C chaoschampion
Repeat Client
United States
as of now this is milestone 1 looking good
$200-$400
Price
5 days
Duration
Helpful?R rupinder143
United States
Awesome , looking forward to work on full windows, mac and ios, android app soon
Up to $50
Price
1 day
Duration
F Seller's Response
Helpful?M 
matthewyeazel
Repeat Client
United States
We are working for a long term project and VERY MUCH looking forward to a long standing relationship to the worlds next big project
$600-$800
Price
2 days
Duration
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C chaoschampion
Repeat Client
United States
Approved, looking good
$200-$400
Price
13 days
Duration
F Seller's Response
Helpful?C chaoschampion
Repeat Client
United States
as of now this is milestone 1 looking good
$200-$400
Price
5 days
Duration
Helpful?R rupinder143
United States
Awesome , looking forward to work on full windows, mac and ios, android app soon
Up to $50
Price
1 day
Duration
F Seller's Response
Helpful?M matthewyeazel
Repeat Client
United States
We are working for a long term project and VERY MUCH looking forward to a long standing relationship to the worlds next big project
$600-$800
Price
2 days
Duration
Helpful?
