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SK 8/32 3G sim rotate voip/sms gateway 8 port/sims card WCDMA fixed wireless desktop call terminal

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Quick Details

Place of Origin: Guangdong China
color: blue
weight: 3kg
support sending: SMS/USSD
Model Number: SK WCDMA 8-32
Voice codecs: G729a/b/e,G723.1,G.711
Power Supply: 100-240VAC, 50 - 60 Hz IN,
frequency: 850/9001800/1900/2100mhz
Brand Name: SKYLINE
Type: VoIP Gateway
protocol: H.323/SIP
Network Protocols: Telnet / HTTP / FTP / TFTP
warranty: one year
support: IMEI change,VPN
Packaging Detail: Bubble inside box , Yellow tape outside box
Selling Units: Single item
Single package size: 45X21.5X5 cm
Single gross weight: 4.0 KG
Package Preview: https://sc04.alicdn.com/kf/Hd01a1210226a4830a11a1b6776a045e7x.png_640x640.png
Skyline (Shenzhen) Technology Co., Ltd.
Gold Supplier
Trading Company
Response Time
On-time delivery rate
US$ 150,000+
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3G SK 8/32 sim rotate voip gateway 8 port/sim card WCDMA fixed wireless desktop phone for call terminal 

Product Description

 8 ports  32 slots goip  's new functions:

  • Support IMEI change automatic and support USSD
  • Support automatically detect the ACD ASR
  • Support automatically detect the sim card issue 
  • Save your internet bandwidth ,15kb/s for 1 call
  • Including the sim bank feature of avoiding the sim card blocked

1) Support 4/8/16/32 Ports, auto sim switch by call minutes/SMS limit per sim/day.
2) 2G/3G/4G models all available. support sms and  call voip business 
3) Support work with Call Center Software, IPPBX, 3CX,Elastic,Asterisk, Vos,VPS, Freeswitch, Softswitch Cicso etc.
4) Free Firmware Version upgrade online and Remote Centralized Management.
5) Free lifetime Tech Support 7x24x365




Relay Encryption Solution(Fix IP blocking)


Bandwidth Optimization


Support SIM Rotating(one channel including 4 SIM cards)


Changing SIM automatically(Fix SIM blocking)


Base Station Switch


SIM Hot Plugging


Remote Control(Access your device system anywhere)


Multi-Codec Support(G729 a/b/e,G723,G711 A/U law,iLBC)


SMS Receive & Send


Upgrade online or local




Guide Initialization Web


Call  SMS  Forwarding


PIN Code Management






Caller Anonymous


Avoid FAS




Echo/Silence control


VOL control




SIP V2.0 RFC3261






Black/White List


Linux Operation(Safe & Stable)

  • GSM 2G/3G/4G 
  • SIP V1/V2, Compatible with mainstream softswitch, SIP server and Asterisk/Open source PBX   gsm sk 8 port
  • 8 channels 32 SIM cards  gsm pstn gateway
  • 4 sim cards per channel rotation using  gsm pstn gateway
  • The SIM can Make calls from different Base Stations. 
  • SIMs auto rotation according to ( Time limits - Day hours - successful calls - Unsuccessful calls - .. etc 
  • Removing Blocked SIMs or SIMs with no credit from routeing. 
  • Remote configuration access. ( Web-interface ) .  gsm pstn gateway
  • SIMs can make calls and SMS between each other. ( To simulate Human Behavior ) 
  • Sending USSD code for SIM recharge.  gsm pstn gateway
  • working fine with DTMF.

Picture show


8-32 68-32 5





  •  A/C: The chip side towards up.
  • B/D: The chip side towards down.


Mobile Features:
1.SMS and call Send, Receive and Forward(GSM/SIP/HTTP)
2.SMS Inbox
3.AT Command , USSD
4.SMS Format: PDU/TXT
5.PIN Code Management
6.CDMA Delay Answer
7.GSM Polarity Reversal
8.Carrier Selection
9.Caller ID Hidden(need SIM Card support)


Maintenance and Management:
1.Multi-language Interface
2.USB Serial COM
3.Configuration Backup and Restore
4.Support HTTP/TFTP Upgrade
5.Call statistics: ASR,ACD,PDD
6. Remote Management System


Anti-sim blockage Solution:
Human behaviour feature
* IMEI modify & Band & PIN Modify
* Port Inter-calling/sms
* Base Station intelligent switching
* Multiple SMS control
* Access to internet surfing
* Call wait
* Call duration control
* Internet surfing


VOIP solutions 

if you need more solutions contact me 



 Packaging & Shipping

pakage and shipping : 

We will  100% check the device before delivery !!!!

After send the device , i  will give you  a tracking number that  you can  track the device  in time.




Our Services

>We provide strong technical support about VoIP service and A-Z call and sms traffic termination(7 days*24 hours)

>We can help you rent a VoIP server in USA

>We can provide copy version VOS

>We can instal Relay server, SMS server, SMB server for you.(for free)

>We can offer voip terminal guide

>We would lke to buy your termina routes.







Any inquiries, contact me freely

For more details plz contact:

whatsapp:  +8613267230448
skype: live:.cid.18bfdb33c650a644