What is busy hour calling rate?
Busy Hour Calling Rate (BHCR) is the average number of calls originated by a subscriber during the busy hour.
How is busy hour calling rate calculated?
How to Calculate BHCA
- Multiply a subscriber’s monthly minutes of usage by the percentage of traffic that occurs during working days.
- Multiply your answer by the percentage of voice traffic that occurs during the busy hour.
- Divide your answer by the number of working days per month.
- Divide your answer by 60.
What is busy hour of telecommunication traffic?
busy hour: In a communications system, the sliding 60-minute period during which occurs the maximum total traffic load in a given 24-hour period. (188) Note 1: The busy hour is determined by fitting a horizontal line segment equivalent to one hour under the traffic load curve about the peak load point.
Which traffic model takes repeated calls into account?
Extended Erlang B This model is similar, but takes into account that a percentage of calls are immediately repeated if they encounter blocking (a busy signal).
What is call completion rate?
The Call Completion rate refers to the total number of calls that are initiated and connected successfully, in comparison to the number of calls that fail. A call failure can occur when there is an incorrect phone number, a non-answer, or a customer declines the call.
What is the dimension of Erlang?
The Erlang is a dimensionless unit that is used in telephony as a measure of offered load or carried load on service-providing elements such as telephone circuits or telephone switching equipment. A single cord circuit has the capacity to be used for 60 minutes in one hour.
What is average hold time?
Average hold time (AHLDT) is a call center metric that measures the average length of time agents put callers on hold during a customer call. It is one of many call statistics provided by the automatic call distributor (ACD).
What is blocking probability in telecommunication?
Blocking probability is the chance that a customer will be denied service due to lack of resources. A blocking probability of 0.01 means 1% of customers will be denied service. Increasing resources in the system.
What is telecommunication traffic?
The load carried on a telecommunication network is called traffic. A telecommunication network must support two types of traffic: signalling traffic and user traffic. Service providers raise revenue from user traffic and thus we refer to it as payload.
What is Teletraffic theory?
As mentioned in the introduction, the purpose of teletraffic theory is to reduce cost in telecommunications networks. Forecasting allows network operators to calculate the potential cost of a new network / service for a given QoS during the planning and design stage, thereby ensuring that costs are kept to a minimum.
What is Erlang B and C?
Erlang Calculations Erlang-B should be used when failure to get a free resource results in the customer being denied service. The customers request is rejected as no free resources are available. Erlang-C should be used when failure to get a free resource results in the customer being added into a queue.
What is Bhca in telecom?
In telecommunications, busy-hour call attempts (BHCA) is a teletraffic engineering measurement used to evaluate and plan capacity for telephone networks.
What does busy hour call attempts stand for?
In telecommunications, busy-hour call attempts ( BHCA) is a teletraffic engineering measurement used to evaluate and plan capacity for telephone networks. BHCA is the number of telephone calls attempted at the sliding 60-minute period during which occurs the maximum total traffic load in a given 24-hour period…
How to calculate traffic intensity in Erlang formula?
To work out the traffic intensity, take the call minutes and divide by 60 to get the number of call hours. So, 600 call minutes / 60 = 10 Call Hours. Now the technical unit for Call Hours is called an Erlang. So the traffic intensity = 10 Call Hours = 10 Erlangs.
How is the average handling time distributed in Erlang?
It is a derivation of the Poisson Formula – but using a special case where k=0. This assumes that the Average Handling Time of calls is distributed by a version of Poisson called the Erlang Distribution. For more information on this topic, read: How Is Average Handling Time Distributed?
Why was the international unit of telephone traffic named Erlang?
The CCITT named the international unit of telephone traffic the erlang in 1946 in honor of Agner Krarup Erlang. In Erlang’s analysis of efficient telephone line usage he derived the formulae for two important cases, Erlang-B and Erlang-C, which became foundational results in teletraffic engineering and queueing theory.