来源：http://www.jnsll.com 发布时间：2023-06-17 18:06:05 浏览次数：
Many companies have applied for 400, and many have reported that they may not be able to reach 400. Below is an analysis of the specific reasons by the Jinan 400 phone handling company.
1. When the number cannot be connected or the line is busy, it is usually due to arrears, power off, not in the service area, or a broken phone. The line may be busy, or it may be due to not registering or being on a call with someone else.
2. The wrong phone number was bound, and some phone numbers require an area code.
3. The waiting time for call settings has exceeded a certain period, which usually needs to be set at 15 seconds or longer, but it must not exceed 60 seconds.
4. Arrearage notification: If there is a phone notification of arrears, it should be promptly charged without affecting usage.
5. If the caller is set to a blacklist, how long will it not get through.
6. The number may have been set, divided into accessible/inaccessible areas.
In short, the application range of 400 telephones is very wide now, and everyone must master a certain level of 400 telephones http://www.jnsll.com Knowledge, able to provide timely answers when customers call for inquiries.