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TDM network planning utility for allocating E1/T1 timeslots across voice channels, SS7 signaling links, and data circuits — supporting legacy PSTN and hybrid SS7-over-IP migrations.
E1/T1 timeslot planners map PCM trunks into signaling and bearer channels so TDM/PRI and SS7 link engineering stays consistent during hybrid SIP migrations.
The planner maps voice channel capacity to DS0 timeslots, accounts for signaling and framing overhead (CAS or CCS), and calculates the minimum E1/T1 span count to meet the traffic demand.
Built on 3GPP Technical Specifications, ensuring accuracy for production deployments and security audits.
Calculations specifically designed to identify protocol vulnerabilities and signaling misconfigurations.
Relevant for core network engineers managing SS7-to-SIP migration, where legacy TDM circuits coexist with SIP trunks. Also used for ISDN PRI sizing on enterprise gateways and MSC interconnects.
Edge-V8 Isolate
Technical Audit
< 50ms (Global)
Secured by Auth0
Marking TS16 for signaling and TS1–15/17–31 for bearers on E1 prevents accidental voice assignment onto the signaling slot.
National CAS variants may differ—confirm with exchange docs.
E1 typically provides 30 bearer + signaling/framing structure (32 timeslots). T1 commonly offers 24 channels (robbed-bit or CCS variants).
Reserve signaling channels per linkset engineering (often TS16 on E1 for CAS/CCS patterns depending on design) and keep bearer TS maps documented.
During hybrid migration and for remaining TDM interconnects. Cutover plans need accurate TS inventories.
Calculate required SIP trunks based on traffic parameters and quality requirements.
Dimension P-CSCF, S-CSCF, and I-CSCF nodes for VoLTE/VoNR networks based on BHCA and concurrent sessions.
Classic tool for determining circuit requirements with zero queuing.
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SSO Link: Academy Node 0x93FF