Telecom Calculators

30 free telecom calculators in Networking.

5G NR Capacity CalculatorWork out 5G NR cell capacity from bandwidth, spectral efficiency, MIMO layers, control overhead and the TDD split.
Backhaul Bandwidth CalculatorDimension cell-site backhaul from peak cell rates, statistical multiplexing gain, growth and protection overhead.
Busy Hour TrafficCalculate busy hour call traffic in Erlangs from call volume and duration.
Call BlockingCalculate the probability of call blocking for a given number of trunks and traffic load.
Call CapacityCalculate maximum simultaneous call capacity for a given trunk or bandwidth allocation.
Call Setup Delay CalculatorAdd up signalling hops, processing time and radio setup to get post-dial delay and check it against the ITU target.
Carrier-Grade NAT Capacity CalculatorWork out subscribers per public IPv4 address, total port-block demand and how many public addresses a CGNAT pool needs.
Charging Session CalculatorEstimate online charging TPS, daily CDR volume and mediation storage for a subscriber base.
Diameter CapacityCalculate Diameter signaling transaction capacity for a given link and message rate.
eNodeB Capacity CalculatorSize an eNodeB: sector throughput, connected users, S1 transport requirement and RRC connection load.
Erlang BCalculate call blocking probability and required trunk lines using the Erlang B formula.
Erlang CCalculate call center agent staffing and wait probability using the Erlang C formula.
gNodeB Capacity CalculatorSize a 5G gNodeB across its cells: air-interface capacity, N3 midhaul transport and supported connected devices.
GTP Tunnel CalculatorSize GTP-U transport for a bearer population, including encapsulation overhead and packet-per-second load.
IMS Session CalculatorEstimate concurrent IMS sessions, SIP transaction rate and the number of CSCF nodes a subscriber base needs.
ISP Bandwidth Oversubscription CalculatorCheck an access node's contention ratio: sold capacity versus uplink, busy-hour demand and the throughput each subscriber really gets.
LTE Cell Capacity CalculatorEstimate LTE cell and site throughput from channel bandwidth, spectral efficiency and MIMO layers.
MEC Capacity CalculatorSize multi-access edge compute: offloaded traffic, edge server count and the round-trip latency saved versus the central core.
PCRF Capacity CalculatorSize PCRF/PCF policy nodes from subscriber count, sessions per subscriber and Gx transaction rate with N+1 redundancy.
RTP Bandwidth CalculatorCompute true on-the-wire RTP bandwidth per call including RTP, UDP, IP and layer-2 framing overhead.
SIP ChannelCalculate the number of concurrent SIP channels supported by available bandwidth.
SIP Trunk Capacity CalculatorSize a SIP trunk from busy-hour call attempts and hold time: Erlangs, concurrent channels and the bandwidth they consume.
SMS CapacityCalculate SMS throughput capacity for a messaging gateway or SMPP connection.
SS7 Link CapacityCalculate signaling capacity of an SS7 link based on link speed and message size.
Subscriber Capacity CalculatorWork out how many subscribers a cluster of core nodes supports, with redundancy reserved and headroom against today's load.
Subscriber Growth Forecast CalculatorProject subscriber numbers with compound growth and churn, and see when the forecast crosses your platform's capacity.
Telecom Network Health Score CalculatorScore a mobile network out of 100 from accessibility, retainability, call success rate, latency and congestion KPIs.
Voice Codec BandwidthCalculate bandwidth consumption per call for common VoIP codecs including overhead.
VoLTE Capacity CalculatorSize VoLTE load: Erlangs, concurrent QCI-1 bearers, busy-hour call attempts and the bearer bandwidth required.
VoWiFi Capacity CalculatorFind how many VoWiFi calls an access point can carry from its PHY rate and airtime efficiency, and how many APs a site needs.