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Quick Details

  • Place of Origin: Guangdong, China (Mainland), Guangdong China (Mainland)
  • Brand Name: SKYLINE, Skyline
  • Model Number: M35-32, M35
  • Type: VoIP Gateway
  • Item: modem input output device
  • Style: External
  • Interface Type: RJ-45, USB
  • Frequency: quad band or dual band
  • Transmission Rate: 512Kbps
  • Module: Wavecome
  • Warranty: 1 year

Packaging & Delivery

Packaging Details 30cm x 20cm x 10cm (11.81in x 7.87in x 3.94in)
Delivery Time within 1 day

wholesale 32 port gsm bulk sms modem mini sms modem manuafactury 


Product Description


GSM MODEM pool also known as "SMS Modem Pool" in China, USB 2.0 can be used directly into the computer USB port, for laptops, desktops can be used. Break the rule that multi-tech can only be used in desktop computers. Built-in wireless modules can be inserted SIM cards, simultaneously to send text messages.

The device built-in 1/4/8/16/32/64 wireless modules can be inserted8/16/32/64 SIM cards, can use eight cards to send text messages, send speed as 8/16/32/64 times as a single channel modem. It uses the development of QUECTEL module, 220V power supply, can be a long time stability, generous luxury housing.


WCDMA frequency:


Quad band :

UC15-E:  GSM900/1800, UMTS900/2100

UC15-A:GSM850/900/1800/1900, UMTS850/1900


There are 4 models of WCDMA SMS Modem which are 8 ports,16ports,32ports and 64ports:


Gsm modem has steady functions and works well. Our gsm modem are with M35 module. best quality !



1, Quad band :

UC15-E:  GSM900/1800, UMTS900/2100

UC15-A:GSM850/900/1800/1900, UMTS850/1900

2,IMEI Change

3,USB optional

4. AT Command

5.Operating Temperature: -20 ° C - + 55 ° C

6.Storage temperature: -25 ° C - + 70 ° C

7. Transmit-receive rate:2800~3000 sms/Hour per port

8. SMS

Text and PDU mode.

Point to point MO and MT.

SMS cell broadcast.

SMS storage: ME by default.

9.Audio Features

Support two analogy input channels and two analogy output channels.



Echo cancellation and noise suppression

10.8/16/32/64 sim slot reliable 


Main Features:

1,Connect with the Computer through USB line for USB type.

2. USB Interface (Optional)

4. Can send and receive SMS in bulk

5.Can dial the number and answer the call

6. Industrial Chassis, Elegant Appearance design.

7. support Windows XP, Windows7, Linux, Unix OS etc.


Basic Features:

1. Baud rate: 115200 bits/s

2. Automatic baud rate: from 2400 to 19200 bits/s

3,GPRS compatible

4. SMA antenna interface

5. Built-in Ac-adapter: 5V/6A

6. USB ports support

7. AT command control (Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT




How to use 


1, Insert Sim card into device





2, Install Driver.  






3, Install Software. We provide free software named SMS Caster if you don't have.





P.S: Our engineer will provide you strong technical support.


Packaging & Shipping








Our Services

1. Skyline is a professional developer and manufacturer of SMS products. We provides SK brand GSM /WCDMA SMS Modem and solutions. And we also offer customized products and OEM service. They are a cost-2. 2. Effective gateway for SOHO, SMEs and system integrators and it also opens up new revenue generating opportunities for service providers. 

3. We always focus on long-term cooperation with our customers. Your needs are our priority. Your 100% satisfaction with our products and services are our lasting pursuit.

4. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in communication industry and other industries. 

5. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs. 

6. What’s more,we provide best before and after sales services,24hours tech support and one year warranty. 7 days guarantee to return if any issue.                                                 


Company Information


Company Information
China Skyline Telecom Co., Ltd. was founded in 2007. Focus on the communications industry for more than 10 years. We have over 120 employees, 15 departments and more than 10 production lines. More than 200 companies from over 60 different countries have established business with us.

Our company is a manufacturer of VoIP Gateways, GSM VoIP gateways, Industrial Routers… with well-equipped testing devices and strong technical force.
With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in communication industry and other industries.

 Well trained tech supports and after-sales specialist, professional sales team, all employees working hard on providing best service to all our clients. 
Also we focus on international wholesale voice business. Thanks to strong relationship with voice retail partners, more than 1000 VoIP providers has been connected with us in the past few years.  SKYLINE has built direct interconnections with Tier1 telecom operators over the world to carry our stable traffic, especially for Asia, Middle East and Africa destinations. With flexible payment terms, strong finance background, competitive rate and 10 years’ VOIP operation experience, we welcome more IP voice interconnections. 
We insist on sincerity, trust and open-minded will be the key to the success for both parties. We sincerely welcome all VOIP interconnection. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!




FAQ explain


How many kinds of modem for GSM module?

there is M35 and  GC65 module for gsm sms modem ,UC15 for 3G (wcdma) modem

How about our service?

We have professional engineer to help you about all your tech problems anytime,the satisfaction of our customers is our greatest desire

What is our main express shipment?

DHL,UPS,FEDEX,TNT,EMS(can ship to anywhere all over the world)


How long we're warranty ?

one year or more

During warranty time,if have problem,how to do?

we'll test by teamviewer or send back,we'll exchange new in free.

How long about our techinical support?

in free,forever



Any enquiry, Contact me freely.

 wholesale 32 port gsm bulk sms modem mini sms modem manuafactury 
wholesale 32 port gsm bulk sms modem mini sms modem manuafactury 
wholesale 32 port gsm bulk sms modem mini sms modem manuafactury 

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