日本語 | English


Premium quality, cost-efficient
VoIP termination solution for enterprises

Providing Japanese DID Numbers.
03, 050, 0120,(Local DID,Toll-free Numbers) and 0570 numbers.
Charged per second(Outbound call)
English support
24/365 emergency support

Japanese LOCAL DID SIP Trunking

Our SIP trunking(LIPSE SIP TRUNKING) is highly regarded for its reasonable cost and quality.

In Japan, telephone charges are typically billed every three minutes. However, our lines are billed per second.

To do so, it enables to eliminate unnecessary costs. Our data center is equipped with lines from major Japanese telecommunications companies, allowing us to provide stable phone numbers quickly.

We provide phone lines via the internet. Phone lines can be easily accessed.

Case Study

smartphone apps for using SIP. Cost reduction for CTI and CloudPBX.
We have the technology and know-how to adapt overseas specifications to Japan.
Many foreign companies have already adopted our service.

Regardless of DID/SIP in Japan, we will support your market expansion in Japan.

We offer assistance with distribution, marketing, and technical consultation related to Japan.

Price List

SIP Trunk Service Basic Charges

Monthly charges
23 channels per contract: 10,000 yen

Telephone Line

Call chargeFixed cost (monthly fee / installation fee)
Landline: 0.06 JPY/secondActual cost billed
Mobile phone: 0.25 JPY/secondActual cost billed

*All prices are exclusive of tax.
*Separate fixed costs for NTT Communications IP-Voice or KDDI Hikari Direct are required. We will provide further details.

Sample Case Study

■ IP-Voice 23ch with 10 numbers

Initial cost

ItemUnit priceQuantityAmount
Basic construction10,000 yen110,000 yen
Additional construction1,000 yen11,000 yen
SIP trunk service setup fee10,000 yen110,000 yen
Total amount21,000 yen

Monthly cost

ItemUnit priceQuantityAmount
Channel fee (16ch)19,200円119,200 yen
Additional channel fee1,200 yen78,400 yen
Number addition100 yen101,000 yen
SIP Trunk Service Basic Fee10,000 yen110,000 yen
Total amount43,800 yen

■ In case of using Optical Direct 23ch 10 numbers

Initial cost

ItemUnit priceQuantityAmount
Line construction fee50,000 yen150,000 yen
Registration fee2,000 yen12,000 yen
Number registration fee100 yen101,000 yen
SIP trunk service setup fee10,000 yen110,000 yen
Total amount62,000 yen

Monthly cost

ItemUnit priceQuantityAmount
Channel fee (8ch)20,000 yen120,000 yen
Additional channel fee1,200 yen1518,000 yen
Number addition100 yen101,000 yen
SIP trunk service basic fee10,000 yen110,000 yen
Total amount49,000 yen


Can I use the service without changing the CTI/PBX currently in use?

You can use the service if your system is SIP compatible. We have listed systems with proven track records. If you have a system other than those listed, we can provide a test (free trial), so please feel free to contact us.

What happens to my phone line order?

The phone line will be in the name of IPSPRO, so please contact us for additional numbers or channel (line) increases and decreases.

Can I use fax?

No, you cannot use it.

Can I use it at an overseas call center?

Yes, you can use it.

Can I use the service without changing my phone number?

If you have a 0120/0800/0570 number, number portability is possible to IPSPRO’s phone line.

Can I use an area code?

Only the Tokyo (03-) area code is available.

Can I provide it with a dedicated line at my own data center?

Yes, you can. Please contact us for details.

How long does it take to provide the service?

We can provide it in as little as one week. *The time may vary depending on the availability of phone lines.

Contact Form

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