Problems of user switch and suggestions for improvement

User switch is a part of the national communication Network, but because of various reasons, the user switch can not play its effective function very well, one of the most prominent problems is the user switch extension users paging digital pager, the number displayed on the pager is the user switch out of the relay number. Because the relay is one-way, only out, can not enter, so the pager user can not return the phone. User switch extension users can only take the addition of the relay number, and then the extension number, when paging the digital pager. This type of paging, at least 16 digits, use is very inconvenient, if the trunk is two-way, double chain lock, will not appear above the problem, but now more than 100 user switches, the trunk into a single, single out, when the user switch out of the trunk in the local telephone terminal one-way, the local users hear is a blocking tone. Now most people do not know the blocking tone and busy signal, the blocking tone as a busy signal, keep back to the phone, causing unnecessary loss. When the user switch relay is one-way, the local telephone port is bidirectional, the user may hear the blocking tone sent by the user switch, or the local ring tone (because of the different design of each switch, its function is also different), but can not be connected.

Another situation can also cause a loss of breath. Is the user switch relay direction is bidirectional, but the local telephone port does not set the re-election, also appears the loss phenomenon. Because when you occupy a relay (such as the first set) paging a digital pager and waiting for the phone call back, if the other people occupy the first relay, the pager users in the first set of relay can not dial before the phone, in order to respond, the pager user will make several calls, until the connected. So there is an unnecessary loss of breath. In order to overcome the above problems, the year before we negotiated with the local bureau, the original out of the direction of the relay all changed to two-way, and all the relay all engaged in the re-election, so that the telephone communication unimpeded, the maximum reduction of the local call loss.

The second problem is that part of the user switch out of the relay in the occupation is not a cycle of work, but in turn occupy, is always the first set to occupy, the first is occupied by the first user, the second user occupies the second set, ... The first several sets of relay utilization rate is high, then several sets out the relay utilization rate is low, causes the user switch out relay and the local telephone equipment utilization rate is uneven.

The problem of the third is now many manufacturers in the user switch configuration computer operator, although the operator to reduce the labor intensity, but there are some problems. is when a local telephone users and users of the switch extension users call, if another local users also call this extension users, at this time the main call should hear a busy tone or a beep, but some user switch at this time no sound, the user opinion is larger, in addition, when the local telephone users direct-dial user switch You must dial the extension before the computer voice is finished. Otherwise, the direct dial fails. A repeater board typically has 4 or 8 sets of relays, and the voice circuit is assigned to each of the relay board of the voice circuit is only one, when several local users call at the same time, the phenomenon of voice circuit queuing, each time the computer voice prompts time for 5~8s, the 4th Local users at least wait more than 20 seconds, a waste of time. If you can dial the extension before your computer's voice is finished, you can reduce the queue time.

The problem of the four is that there are several problems in billing management:

(1) Calculate the call time, some in seconds, some by the minute, not the same. If the minutes are counted, two calls in a minute will have two phone calls starting at the same time, or the same end time (not a deferred charge, but a polarity reversal charge). Check the phone when the user is often skeptical, so should be counted in seconds to be accurate.

(2) as from 0 to 7 o'clock according to the original charge of 30% charges, the original international telephone is no preferential, now have preferential prices, and more favorable to neighboring countries, so the original fee standard software management system can not adapt to the current cost management, so the manufacturers have to consider this. In addition to the charging standard software management system should be set up in addition to automatic preferential price function, there should also be artificially set preferential price function, because the Spring Festival is based on the lunar calendar, each year is different, and some areas have their own local holidays, have to consider good.

(3) Some manufacturers do not consider the special Bureau (such as 110,119,120,122, etc.) without charge, and the phenomenon that should not be counted. Therefore, all manufacturers should consider the special Bureau of the Telephone Bill management system. such as charge items and no charge items, the charge item also scored 1min once with 3min. such as 114,184,200,800,108, each time by 3min calculation, and 168 of information is the 1min calculation of a charge, the rate is also due to 168 4 digits after the difference, Generally divided into 0.00 yuan per minute (free), 0.10 yuan, 0.20 yuan, 0.30 yuan, 0.40 yuan, 0.50 yuan, O. 60 yuan, 0.70 yuan, 0.80 yuan. These parameters should be set by the user themselves because of different standards.

The problem of the five is that most users of the switch user level is generally 6 or 8: No restrictions, limited to international, domestic and international, limited to the international and domestic suburbs, limited to international and domestic suburbs and local, restricted information platform, all restrictions. Now all parts of the country have basically realized the local network, if the user requirements to limit outside the province, or outside the network, it can not meet user requirements, so should be a more detailed user level to meet user requirements.