kamailio/kamailio
Oct 2024 – Jan 2026
2 Months active
Languages Used
C
Technical Skills
C ProgrammingNetwork ProgrammingSIPVoIPC programmingnetwork programming
Kilian Wöber
PROFILE
Kilian Wöber
Worked on the kamailio/kamailio repository to enhance SIP and VoIP infrastructure by addressing both routing accuracy and DNS resolution efficiency. Improved ISC mark state handling in message routing by replacing an ambiguous flag with a descriptive status enum in C, reducing misrouting risks and strengthening message deliverability. Later, delivered a DNS resolution enhancement by integrating NAPTR caching into the dns_srv_handle, which reduced redundant lookups and improved call setup reliability under load. Demonstrated expertise in C programming, network programming, and system programming, focusing on robust protocol handling and performance optimization for high-throughput, real-time communication environments within the Kamailio codebase.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
170
Activity Months2
Your Network
105 peopleSame Organization
@kontron.com2
Work History
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for kamailio/kamailio: Delivered DNS Resolution Enhancement with NAPTR caching, integrating NAPTR entry storage into the dns_srv_handle and reuse during resolution. This reduces redundant DNS lookups, lowers latency, and improves throughput under high query load. The fix for lookup of multiple NAPTR entries (commit 34844f3b235235c9d44681f89098893967e3b408) added reuse logic and extended the DNS stack for more predictable behavior. Overall impact: more efficient DNS resolution, improved call setup reliability, and better resource utilization. Technologies demonstrated include C, DNS/NAPTR handling, dns_srv_handle integration, and caching for performance optimization.
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for kamailio/kamailio: Delivered DNS Resolution Enhancement with NAPTR caching, integrating NAPTR entry storage into the dns_srv_handle and reuse during resolution. This reduces redundant DNS lookups, lowers latency, and improves throughput under high query load. The fix for lookup of multiple NAPTR entries (commit 34844f3b235235c9d44681f89098893967e3b408) added reuse logic and extended the DNS stack for more predictable behavior. Overall impact: more efficient DNS resolution, improved call setup reliability, and better resource utilization. Technologies demonstrated include C, DNS/NAPTR handling, dns_srv_handle integration, and caching for performance optimization.
January 2026
October 2024
1 Commits
Oct 1, 2024Month 2024-10: Delivered a targeted fix to enhance ISC mark state handling in Kamailio's message routing, improving filtering accuracy and routing reliability. Replaced the ambiguous firstflag usage in isc_match_filter with a descriptive status enum to clearly represent ISC mark presence in route headers, lumps, or absence. The change reduces misrouting risks in ISC-based routing scenarios and strengthens message deliverability under diverse routing configurations. Commits include 2bd70ed7ab8ec4cf59e12be3d561c735d84f2dea (ims_isc: bugfix: firstflag incorrect in isc_match_filter).
October 2024
1 Commits
Oct 1, 2024Month 2024-10: Delivered a targeted fix to enhance ISC mark state handling in Kamailio's message routing, improving filtering accuracy and routing reliability. Replaced the ambiguous firstflag usage in isc_match_filter with a descriptive status enum to clearly represent ISC mark presence in route headers, lumps, or absence. The change reduces misrouting risks in ISC-based routing scenarios and strengthens message deliverability under diverse routing configurations. Commits include 2bd70ed7ab8ec4cf59e12be3d561c735d84f2dea (ims_isc: bugfix: firstflag incorrect in isc_match_filter).
Activity
Loading activity data...
Quality Metrics
Correctness85.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
C ProgrammingC programmingNetwork ProgrammingSIPVoIPnetwork programmingsystem programming
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline