SIP Capture / Homer
Without capture, voice incidents are reconstructed from memory. Zypager helps you deploy and use Homer/HEP so any call can be retrieved as a ladder, searched and correlated with its RTP.
Problems solved
- No visibility into production SIP
- Cannot retrieve a specific failed call
- No evidence for carrier escalation
- RTP and signalling not correlated
How Zypager helps
- Deploy Homer with Kamailio siptrace / HEP
- Build call-ladder and message-search workflows
- Correlate RTP with signalling
- Design privacy-conscious capture and retention
Technical areas covered
Typical deliverables
- Capture architecture design
- Search & escalation playbook
- Retention / redaction guidance
Frequently asked questions
Yes. One-way and no-audio problems are usually in the RTP media path or NAT/SDP handling rather than the signalling. With a SIP trace and the SDP from each leg, the media direction can be followed to the point where it stops.
Yes — Asterisk, FreeSWITCH, Kamailio, OpenSIPS and RTPengine. Many real systems combine them (edge proxy, media relay and application logic), and problems often live at the boundaries between them.
WebRTC-related work may be reviewed separately where it is directly connected to Asterisk, Kamailio, RTPengine or SIP troubleshooting, but it is not currently offered as a standard fixed-price service.
Reading traces is central to how Zypager works. A clear pcap, sngrep or Homer export, plus call details, is often enough to identify the failing transaction without live access.
Yes, on an hourly basis for urgent incidents — failed inbound/outbound calls, RTP/no-audio and carrier problems. Final scope and availability depend on access and complexity.
Related services
SIP Trunk Troubleshooting
Inbound and outbound call failures, isolated to the leg that breaks.
RTP / No-Audio Troubleshooting
One-way audio and no audio, separated from signalling.
VoIP Security Audit
Close the exposure before it becomes a fraud bill.
Not sure which service you need?
Send the symptoms and a call example. The right starting point becomes obvious from the trace.