China SIP trunk service providered by Goverment Service Provider & 3rd Service Provider
Only China Telecom / China Unicom / China Mobile has China phone number resources, while other third-party service provider numbers are obtained from three by wholesale sources

| Government Telecom Service Provider | 3rd Internet Telecom Service Provider | |
|---|---|---|
| Provider | China Telecom, China Unicom, China Mobile | 3rd providers | 
| Connection | Public SIP / Private SIP | Public SIP | 
| Type | Private individual using | Shared together using | 
| Phone bill | Provider by telecom | Provider by 3rd | 
| Payment | Postpaid | Prepaid | 
| Number Owner license | end user company | 3rd company | 
| Applyment time | 1-2 months | 3-5 working days | 
| City number for apply | All city in china | Specified city in china | 
| Suggesting usage | Microsoft Teams phone / Normal conversation | Sales & Marketing call | 


A: China Telecom, China Unicom and China Mobile can provider SIP trunk. and also some 3rd provider can do SIP trunk.
A: Sorry you can not get. According to china law, all phone number need registered under china local company.
A: We can help to push on the process with our resource, then you can use SIP number ASAP.
A: Goverment SIP trunk service is open in 2018. Also SIP need technical skill. So only a few people can do this.
A: You need buy a SBC device to setup with the parameter you get. we can help you to do configuration.
A: With CTS SIP server, you can forward local office SIP line to remote.
A: Call 10000(telecom), 10010(unicom), 10086 (mobile), you can verify if number belong to you.