sip

package

v1.4.3 Latest Latest Go to latest Published: Jun 9, 2026 License: MIT Imports: 0 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/LingByte/lingllm

Links

Open Source Insights

Documentation ¶

Overview ¶

Package sip provides a pure SIP/2.0 signaling stack (no RTP, no AI).

Layering:

protocol/sip/stack        message parse/serialize, UDP Endpoint, TCP framing (ReadMessage)
protocol/sip/transaction  INVITE/non-INVITE client & server transactions, CANCEL, ACK, timers
protocol/sip/dialog       Call-ID, tags, early/confirmed dialog registry
protocol/sip/uas          UAS handler registration and transaction wiring on stack.Endpoint
protocol/sip/sdp          SDP parse/generate (signaling bodies only)
protocol/sip/outbound     UAC signaling (INVITE/CANCEL/BYE, TCP/TLS pool)
protocol/sip/historyinfo  RFC 7044 / RFC 5806 transfer headers
protocol/sip/identity     RFC 3325 P-Asserted-Identity / Privacy
protocol/sip/session_timer RFC 4028 Session-Expires negotiation
protocol/sip/gateway      UDP UAS + optional UAC Endpoint on one socket; TCP/TLS listeners
protocol/sip/transfer     B2BUA transfer signaling (REFER/NOTIFY, retarget headers)
protocol/sip/stir         STIR/SHAKEN passport header helpers
protocol/sip/hooks        Lifecycle + recording sink interfaces (no ORM)
protocol/sip/signalinglog Optional logrus SIP message audit hook
protocol/sip/metrics      Prometheus registry + SIP-layer counters

RTP, codec negotiation, media sessions, and transfer bridging:

protocol/sipmedia         (see protocol/sipmedia/doc.go)

AI / voice dialog:

protocol/voice

Quick start:

# Pure signaling UAS: examples/sip-uas-demo
# Outbound signaling: examples/sip-outbound-demo

Logging uses github.com/sirupsen/logrus (StandardLogger); no bootstrap required.

Source Files ¶

View all Source files

doc.go

Directories ¶

Path	Synopsis
dialog Package dialog tracks minimal SIP dialog identifiers for UAS-centric call legs.	Package dialog tracks minimal SIP dialog identifiers for UAS-centric call legs.
gateway Package gateway wires stack + transaction + uas (+ optional outbound) into a runnable SIP server.	Package gateway wires stack + transaction + uas (+ optional outbound) into a runnable SIP server.
historyinfo Package historyinfo implements RFC 7044 History-Info and RFC 5806 Diversion header processing for the SIP call-transfer / retargeting path.	Package historyinfo implements RFC 7044 History-Info and RFC 5806 Diversion header processing for the SIP call-transfer / retargeting path.
hooks Package hooks defines optional callbacks for call lifecycle and recording delivery.	Package hooks defines optional callbacks for call lifecycle and recording delivery.
identity Package identity implements RFC 3325 P-Asserted-Identity (PAI) and Privacy header processing for both outbound (UAC) and inbound (UAS) signaling paths.	Package identity implements RFC 3325 P-Asserted-Identity (PAI) and Privacy header processing for both outbound (UAC) and inbound (UAS) signaling paths.
metrics Package metrics is the SIP stack observability surface: a dependency-free Prometheus registry plus typed SIP counters.	Package metrics is the SIP stack observability surface: a dependency-free Prometheus registry plus typed SIP counters.
outbound Package outbound implements SIP UAC (outbound) signaling without media binding.	Package outbound implements SIP UAC (outbound) signaling without media binding.
sdp Package sdp parses and generates minimal audio SDP bodies for SIP/VoIP.	Package sdp parses and generates minimal audio SDP bodies for SIP/VoIP.
session_timer Package session_timer implements RFC 4028 Session Timers in SIP.	Package session_timer implements RFC 4028 Session Timers in SIP.
signalinglog Package signalinglog provides optional logrus hooks for SIP signaling audit trails.	Package signalinglog provides optional logrus hooks for SIP signaling audit trails.
stack Package stack is the lowest SIP/2.0 signaling layer in lingllm.	Package stack is the lowest SIP/2.0 signaling layer in lingllm.
stir
transaction Package transaction implements RFC 3261 SIP transaction-layer behavior over UDP.	Package transaction implements RFC 3261 SIP transaction-layer behavior over UDP.
transfer Package transfer implements B2BUA-style call transfer signaling (RFC 3515 REFER + NOTIFY).	Package transfer implements B2BUA-style call transfer signaling (RFC 3515 REFER + NOTIFY).
uas Package uas registers inbound (UAS) SIP method handlers on stack.Endpoint.	Package uas registers inbound (UAS) SIP method handlers on stack.Endpoint.

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL