A SIP trunk service bundled with Hong Kong, China or Singapore telephone number. Unlimited call-in from and call-out to HK. Support busy forward to voicemail or your PSTN.

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  • Download

  • Certified

  • Supported


  • Hong Kong SIP number
  • China and Singapore SIP number
  • Busy forward to voicemail and PSTN


  • Free


ZONE is a licensed telecom operator in HK offering HK DID numbers (HK virtual phone numbers) to your compatible SIP platforms like Asterisk, Elastix and many others. You can get HK local presence without all the expensive overhead. The DID comes with optional outbound dialing, voice recording, voice mail, call forward and concurrent call features. 


The DID is applicable in call centers and virtual offices. 


In addition to HK DID, we provide Singapore and China DID for you to develop the Asia markets. 

Hong Kong, Singapore Local Telephone Number / DID Number via SIP Trunk (VOIP)

ZONE Limited is a license telecom operator in HK and SG operating VOIP service legally in the city.

Advantage of Hong Kong DID number
- Call to Hong Kong is free of charge
- Receiving call is free of charge
- Enjoy the cheapest International call (IDD) Rate
- We can work with SKYPE, Grandstream and all standard SIP device

ZONE offers complete IP telephony solutions including IPPBX, IP Phone, IP Box and HK PSTN numbers. After registering HK DID number from ZONE, customer can use their own IP Phone / IPPBX with ZONE's SIP trunk.

China Local Telephone Number and prefix 400 Toll-free Numbers

ZONE Limited (www.zonetel.com ) can help you to apply the 400 toll free numbers and deliver to you via tranditional way or IP (SIP TRUNK).  The prefix 400 toll free is accessible from both landlines and mobiles within the country.

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Support Details

Our technical support team could assist customer to configure SIP trunking in most common SIP/Asterisk platforms like Elastix, Trixbox, Freepbx etc.  A preliminary voice quality test could be arranged before order is confirmed.

Support Contact Information

ZONE Limited


ZONE Limited (www.zonetel.com) is a member of e-KONG Group (www.e-kong.com) (HKSE stock code 524).

We are licensed ITSP in Hong Kong and specialize in telecom solutions. Operating our branded long-distance calling service (www.zone1511.com) in Hong Kong for 10 years, we know very well how telecommunication works.

We know equally well how to integrate it with your IT infrastructure. Attributing to innovations in VOIP telephony, convergence of telecom and IT systems is now put in practice with tangible benefits of improved efficiency and cost savings. We have exactly the experience and knowledge to make convergence work for you.

We strive to provide professional service to support your growing business. Our team of experienced telecom professionals and system developers would thoroughly understand your requirements, select the right products and deliver the ideal solutions.

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