2. QUALITY OF SERVICE PARAMETER FOR CELLULAR MOBILE NETWORK AND SMS SERVICES Every Cellular Mobile Telecommunications Operator shall meet the following Quality of Service standards set for cellular mobile service in respect of each specified parameter measured by test traffic in any locality and shall submit a report in the reporting period based on daily peak hour conditions. Table 2: Quality of Service parameter for Cellular Mobile Voice and SMS Services (2G/3G/4G/LTE) Parameter Call Set-up Time Call Drop Rate Blocked Call Rate Call set-up Success Rate Handover Success Rate (HOSR) Definition The call setup time means a time interval from the instant when the calling party makes a call to the time when the calling party receives a ring back tone or alerting massage The proportion of successfully established voice calls that are dropped by the network before they can be ended normally by the user. Call Drop Rate is the probability of a call terminating without the user causing it. Blocked call means a call which is not connected because there is no free channel to serve a call attempt. The percentage of attempted calls that are successfully connected to the intended recipient Handover success rate means the ratio of successful Formula Target Urban Rural ≤ 8 Sec for 95% of calls ≤ 10 Sec for 95% of calls Call Drop Rate = (Number of calls terminated unwillingly / Total number of successfully established calls) X100% ≤ 2% ≤ 5% Blocked Call Rate = (Number of Blocked calls/ Total Number of Call Attempts) X100% ≤ 2% ≤ 5% Call set-up Success Rate = Total number of successfully connected calls/ total number of call attempts) X100% Handover Success Rate = (Total number of successful ≥ 98% ≥ 95% ≥ 96% ≥ 94% Time of Call Alerting Time of receiving Dial tone 11