Grandstream IP Telephony System
Designed to provide a centralized in-premise solution for the communication needs of businesses, the UCM series IP
appliance combines enterprise-grade voice, video, data, and mobility
features in an easy-to-manage solution. This IP PBX series allows
businesses to unify multiple communication technologies, such as voice,
video calling, video conferencing, video surveillance, data tools,
mobility options and facility access management onto one common network
that can be managed and/or accessed remotely. Work seamlessly with
major telco operators - SingTel, Starhub, M1, MyRepublic and many more
available via the internet.We have deployed Grandstream with:
- SingTel ISDN10/30, fixed land lines or digital voice
- Starhub SIP Trunks
- M1 SIP Trunks
- MyRepublic, Hoiio, DIDLogic and Happy2Call SIP service vendors
Grandstream offer all these modules that are already
built-in with no additional licenses or recurring fees required:
and many other enterprise-level functions but priced at SME level. We have solutions for capacity of 4 to 2000 extensions.
- call auto-attendant
or interactive voice response system
- fax server (with fax-to-inbox)
- call recording (voice logger for all extensions)
- voicemail (with voicemail-to-inbox)
- call details report
- support free SIP softphone on Windows/iOS
- support free mobile app on Android/iOS
- call center module - with supervisor listen & whisper functions
- call forward external
- conference rooms supporting 25 participants
is example of fully integrated telephony utilising traditional analog
& ISDN lines (eg. SingTel, Starhub) with SIP trunks (eg. Starhub, M1, MyRepublic, etc) for communications across the
Grandstream offer a full portfolio of IP phones for every need and every user.
IP PBX vs KTS
Brief comparison between the traditional Key Telephone System and IP PBX below:
Here is a comparison of Grandstream IP-PBX against a typical KTS
Service Providers and Calling Cost: Ability to easily route calls
through VOIP service providers offering economical international call
rates is a great savings to the company. Further savings can be
achieved in inter-office calls, where applicable. If configured
correctly, inter-office cross border calls via the Internet are free.
Cost: For feature-to-feature comparison, IP PBX is by far lower cost to
KTS. IP PBX generally comes with fax server, call logging,
auto-attendant/IVR, conference bridge, CDR and voicemail. These are
chargeable options in KTS. IP PBX is far more scalable.
Asterisk-based IP PBX is based on open-source. One can be implemented
with full feature simply by installing it on any standard PC server.
More info on Asterisk can be found at www.asterisk.org.
Cost: We evaluate phone cost from two angles – supplies and actual cost
of the phone. IP phone has now caught up with key phone in terms of
cost. But most importantly, IP PBX using SIP protocol can work with SIP
Phones from many manufacturers. Each offering wide spectrum of features
and price points to meet your needs. Unlike SIP phones, KTS can only
work with phone from the same manufacturer. Softphone on PC/Notebook
are sold at a fraction of the physical phone. Some SIP Clients on
mobile phones are even free. With IP PBX, you are no longer vendor
Varieties: For KTS, the phone be it the physical hardware or the
softphone are proprietary and can only be obtained from the same
manufacturer. For IP PBX (in this case, we discuss only SIP standard),
there are many varieties from various sources – physical phone,
videophone or softphone on PC/Notebook, SIP Client App on Android/iOS
and very soon we’ll see HTML5 SIP client running on browsers. These
endpoints give IP PBX options that KTS could never have.
from Mobile Endpoint Support: With advent of SIP Clients on
Android/iOS, IP PBX can easily support Bring-Your-Own-Device (BYOD) in
an enterprise environment. By allowing the use of mobile devices, the
extension goes with the employee. Furthermore, access to their
frequently used contact numbers is only a button away from their mobile
Support and Maintenance: IP PBX and IP Phone can be remotely accessed
and re-configured, making it far more convenient for technical support.
Additionally, organizations with IT support can easily support IP PBX
compared to proprietary KTS solutions. Web-based GUI also facilitates
non-technical staff with limited privileges to access, monitor or
perform self-service activities easily.
Surveillance system integration: Through the use of IP Cameras and IP
Videophones, one can now access real-time video. Business owners find
there are many uses – monitoring, guest at the entrance, view before
IP PBX works off the common network in office while KTS needs separate
wiring. The trade-off would be additional load on the data networks. In
some cases, companies adopt separate networks for data and
KTS phone obtain its power directly from the phone wire whereas IP
Phone would require separate AC/DC adaptor or from PoE switch. Expect
higher power consumption from IP PBX solution.
Security concerns are present for both. KTS calls could be tapped while
IP-based could not avoid being snooped on. However, IP PBX present
additional security concerns as hackers could also gained access to the
IP PBX and possibly route calls at your expense. So added security
measures are required for the peace of mind.
Bandwidth: In order to maintain the same network quality, IP PBX would
require additional bandwidth to support VOIP calls, inter-office
communications, remote extensions, etc. This is not necessary a
drawback since all these would have incurred additional costs in other
forms or in some cases, not an option at all, for KTS.
IP PBX (Grandstream)
Key Phone System
Auto Attendant & Interactive Voice Response
Grandstream comes with 5-level call handling including programmable modes – non-office hours, public holidays, etc.
Also include voicemail-to-email. Users need not be in office to access voicemail.
Voicemail accessible via telephone set in office.
All/Some call conversations can be programmed to be recorded or recording on-demand only.
Total recording including voicemail is limited to 50,000 minutes.
Call Detail Records
Call history (incoming and outgoing calls) are all captured for analysis or cost allocation, if needed.
SIP softphone clients (many available free and downloadable from
internet). User can create extension on PC/Notebook/Mobile phone and
make/receive calls from there.
Need to be IP-enabled (chargeable option). In most cases, only softphones from the same supplier can be supported.
Can sign on with VOIP service provider and take advantage of the benefits associated with VOIP services
Need to be IP-enabled (chargeable option).
Future Expansion (additional Phones/Extension)
Use industry standard SIP phone from any suppliers (not necessary from Grandstream).
Additional extension can also be free using free softphones.
Must be from the same supplier.
but only available with SIP Phone supporting video (with built-in
camera). Some free softphone (X-Lite) support video call.
Call forward to Mobile phone
Programmable for each extension – unconditional or “no answer”.
Less flexible. Unconditional-only but require reset to go back to normal operation.
Savings on Wiring
the same LAN point. If already available at each workstation. Connect
from wall faceplate to Phone and from phone to PC/Notebook.
Separate wiring from LAN.
Extension move with the phone. No programming required.
Re-programming may be required.
Panasonic Telephone Systems
NEC Telephone Systems
Grandstream IP PBX
Door Access System