Telecommunications

Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.

Share tech news, updates, or what's on your mind.

Sign up to Post

Question -
company's IP phones/voice managed by 3rd party.  No PBX on-site.  
Is SIP Trunking still required for the calls or its just calling over the Internet?
0
Meet the Family that is Made for Collaboration
LVL 2
Meet the Family that is Made for Collaboration

The TeamConnect Family product group as part of the Sennheiser for Business Portfolio comprising high-quality, technically well-conceived meeting solutions for business communication – designed for any meeting room and any meeting situation.

Is there a way to use google voice with a VoIP phone that has only Cat 5/6 port ?
0
SIPp is a free SIP traffic generating tool for Linux.
http://sipp.sourceforge.net/

SIPp user manual says you can install SIPp under CYGWIN on windows. However I am not experienced  with compiling applications to run under Linux and need help getting SIPp up and running under CYGWIN on a windows10 machine.

I have successfully installed CGYWIN and included the following packages (all successfully)
gcc-core
gcc-g++
gcc
libncurses
make

After the CGYWIN install, I put C:/cygwin64/bin in the win10 systems’ environment variable PATH – so far all ok and CGYWIN seems to be working fine.

In addition, the SIPp install instructions state:

Warning
SIPp compiles under CYGWIN on Windows, provided that you installed IPv6 extension for CYGWIN (http://win6.jp/Cygwin/), as well as libncurses and (optionally OpenSSL and WinPcap). SCTP is not currently supported.


QUESTION 1 -  Do you know what this is???    IPv6 extension for CYGWIN http://win6.jp/Cygwin/ 
is it a CYGWIN package, and entire install version??
What/how do I need to do to check/install?

QUESTION 2 – Nothing happens when I try to run “autoreconf -ivf” ...but this might have to do with Question 1 not being addressed yet.

 /cygdrive/c/Backup/tools/SIPp/3.3
$ autoreconf -ivf
-bash: autoreconf: command not found


+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
FROM DOC


Installing SIPp
•      On Linux, SIPp is provided in the form of source code. You will need to…
0
We have two different telecoms setup here. Anyhow, I want to move the Xerox machine with a dedicated line to another room. the dedicated fax line is using a RJ11 and ther eis also a RJ45 data port being used. The other room is setup for RJ45.

My issue is moving the dedicated Fax line. The line comes to the printer with no moving room. I'll either leave the box in place and use a longer Ethernet cable and wire it for RJ11 and move it to the other room. I haven't climbed into the ceiling yet to see if there is extra wire but I have to move it over 50 feet. I was thinking to leave the box in place and put a cable into the box and then feed it back up to the ceiling and run it across to the other room I need to put the Xerox in.

Does anyone have an easier way of doing this or any other ideas? I hope this makes sense...

Any questions please let me know.  I can also attach pictures...

TY All
0
Hey all, i have an issue that external calls has noise, delayed audio from the external side. Internal calls are fine.
We recently changed from the Telstra supplied modem to a Draytek Modem. All ports have been opened up the same as they were on the Telstra one, all lines and SIP registered straight away, however i have not been able to resolve the noise.
As Draytek have alot more advanced firewall settings, QOS, I'm not sure what feature / settings i need to change to test.
We are running freepbx 2.11.

Thanks
Matt
0
We are a Small SMB. Does anyone else have the issue that their customers text them with issues instead of emailing. Does anyone know of an affordable unified communications app that can put all my calls, texts and emails into one
0
Hello Experts,

I am in need of options to connect an analog phone to an old, Nortel PBX that is in another building with no physical, wired connection between the two buildings.  There IS network connectivity between the two buildings, and I've been told by our phone support \ vendor that there are devices available that would connect to the analog port on the PBX on one side, and to the phone itself on the other side, and then both devices would connect to the LAN to provide connectivity between the PBX and the phone.  Our vendor, however, has very little info on these.  I am writing to see if anyone here has any familiarity with this concept, and if so, can provide any recommendations or guidance on makes \ models they have used successfully in the past?

Thanks in advance for any help that can be offered,

Russ
0
I have an old CallManager (4.3). it works great and no one wants to upgrade it. I have several small offices and individuals working from home offices and in order to have working phones in their locations I have to do site-site VPN's to each location.
Is there way to create some port forwarding and avoid VPN? Which ports? Any downsides?
The firewall is Cisco ASA5510 and they have Cisco 7941 and 7970 phones if that matters.
Thanks!
0
Hello, I'm curious, hence I ask you; Is there such a "recent college engineer", either software or hardware, or one that studied both, who would meet all of these requirements:
embedded Linux based data telecommunications system/ VoIP/SIP
satellite network application and
embedded software/ Firmware/embedded systems
automation scripting
Python
Java
Linux operating system/Linux Network expertise
Unix shell scripting
WEB GUI test automation
DO-178B experience
Satellite communication experience
Telecommunication experience/PBX switching systems

Any comments?
Do companies expect to find an "expert" engineer with all this knowledge?
thanks
0
I have a phone within my organization, while on DND, if called on the outside direct number, it rings while it's on DND.  Does anyone know how to program it to forward to voicemail and not ring through while the phone is on DND.

We have a MITEL System
- DBPrograming Version 6.0.11.81
- CS%000SessMangr.exe 6.0.0.7
- Call Processing Vers 6.0.11.92
- Voice Processor Vers 630.11.87
0
Will your db performance match your db growth?
LVL 3
Will your db performance match your db growth?

In Percona’s white paper “Performance at Scale: Keeping Your Database on Its Toes,” we take a high-level approach to what you need to think about when planning for database scalability.

My recent headphone was broken and now I was thinking to buy a new one. I visited few websites but now puzzled that from which one i buy...?
0
I used this Note 5 for 2+ years with a great experience.  Great phone - large bright screen 5.7" 2560x1440 pixels, fast 4GB RAM and 32GB Storage, 16mp camera.   All good except.. battery life is terrible.  Time for an upgrade.  
Should I stick with Samsung and go with Note 8 or what would be other recommendations?  

Thanks in advance.
1
I just signed out of a Google Voice account on my Samsung Galaxy S8 phone.

I have logged in with another Google Voice account which is the one I want to have associated with my cell phone.

The problem is that when I make phone calls using my Samsung Galaxy S8 phone the caller ID for the most recent Google Voice account (510-xxx-xxxx) displays instead of the caller ID for the other Google voice account I have switched back to (415-xxx-xxxx).

I also remember that when I have set up Google Voice numbers in the past that these Google Voice numbers have given me the option to fully integrate Google Voice with my Sprint PCS phone (which is what I want to do now). However I am not given this option at this time.

What do I need to do to fix this issue so that the phone number associated with my 415 area code Google voice number will display whenever I make phone calls?
0
I own an Avaya ACS509 R7 BUSINESS PHONE SYSTEM NAMED PARTNER. One of the extensions,the main programming extension number 10 is not functioning 100%.There is an illuminated button that can be designated as DND (Do Not Disturb). The button does make a click in the receiver but does not turn on the DND feature nor does the led come on. I have tried several identical phones on that  line and none of them work. All of them work different extensions. So, I must assume it is the main controller board. I am an Electronic Technician and probably can repair it IF I could locate a complete schematic diagram along with pcb board layout pictorials and part numbers/values. I do NOT need the programming manual or user's manual. ONLY a technical repair manual. They must exist somewhere since there are several locations that will repair this motherboard. I would really appreciate it if any Expert could direct me to a pdf or similar for this unit. It is also referred to as an ACS-R7 unit. Anyone assisting me will be the recipient of 735 virtual Kudos!

NOTE: This is NOT a voip system. Just a regular 20 extension phone system.
0
I'm trying out a few different UK network sim cards.  For EE under the Enable 4G setting it offers, OFF, Voice & Data and Data only.

What has voice got to do with 4G because the other network sims dont mention Voice and data only data.
0
Hello everybody,
I am a junior telecom consultant and am working on a ToIP migration project.
My client has some specific needs to be satisfied in his new ToIP network and i need your help as soon as possible.
in fact i have 2 questions :
             * Can we chain 2 IP phones on the same PoE switch port knowing that the 2nd phone will be connected to an external power
                supply  ?
             * What are the potential risks or the disadvantages of chaining the PC behind the IP phone ?

It will be helpful also if you can share with me a document describing this topic.
Thanks in advance, i'll be grateful.

Raouf
0
Is it possible to have a call attendant on Google voice , just even greeting or music?
0
My company wants to compare pricing on hiring a full time switchboard operator versus outsourcing to an answering service.  We have one published number for the company even though all departments have a DID line.  The company is against automated attendant so the current choices are 24/7 answering service versus hiring an operator.  The idea is that the company main number would be forwarded to the answering service who would take the call and answer as "companyname."  They would then transfer the call to a DID number at our company to complete the call.  Obviously, the answering service would have a directory of DID numbers to forward to.

I am looking for some answering services that people have tried and have been happy with.  I just want to get an idea on pricing since we'd be comparing it to hiring a full time employee.
0
I am an office worker and need to buy a headset very urgent but confused that which one I buy form this series and from which trusted online retailer. If anyone knows a retailer that can be trusted to buy my product so, please reply me back.
0
[Video] Oticon Case Study
LVL 2
[Video] Oticon Case Study

Open office environments can create the dynamics for innovation, but they also bring some challenges. With over 1,000 employees in an open office, Oticon needed a solution that would preserve the environment while mitigating disruptive background noises.

Watch how they did it.

Please provide me with a URL address of the Sprint PCS add a phone program.

I know several users who all currently have a single Sprint PCS cell phone and are interested in finding the details of how they can add a second phone to their Spring PCS account using the current Sprint PCS promotion that we have heard is going on until the end of June of 2017.
0
Need to run direct burial CAT5E with telephone signal lines and intend to terminate with RJ11 plugs.
I find that the wire insulation diameter is a bit large to assemble the cable end into the plug.  
I suppose that I could terminate the CAT5E cable with a modular jack and then use a telephone cord (RJ11-RJ-11) from there.
Yet, the same issue isn't anticipated on RJ45 plugs.
Is there a wire diameter (including insulation) specification for RJ11 that's smaller than for RJ45?
0
Hello all,

I have some Win 2012 3cx v15 phone systems and was having trouble with apple push notifications for calls to remote devices.  I've determined it to be a TLS issue.  I had used IIS Crypto to remove the less secure SSL 3.0, TLS 1.0 and 1.1, leaving just TLS 1.2 and more secure ciphers.  This breaks apple push notifications from the 3cx server/software.  I put back TLS 1.1, no luck.  Put back TLS 1.0, now push notifications work.  I find it odd that I should still need 1.0 enabled on the server.  

Is apple push still using that protocol and not 1.1 or 1.2, or might there be something else going on here.

I'm by no means familiar with protocols/ciphers, just determined what fixes the problem.
0
Hi guys,

I am a network engineer and I have a requirement where I was asked to design IP PBX system with  Analog phones
can I use cat6A cable, CAT6A patch panels or I have to consider 110block?

Can anyone please guide here, it's very urgent...........
1
Hi All Expert,

Good Day.

I would like to check if there is anyway on how to check whether the company is using which phone PBX system?

Thanks!
1
I have the above phone trying to VPN with a Dell SonicWall TZ400. When I put in the VPN information, listed below, the phone fails and gives me error codes that Phase 2 no response. I will list the three error codes I also see, if anyone can point me in the right direction.

SonicWALL

SonicWall VPN Settings:

Policy Type: Tunnel Interface
Authentication Method: IKE using Preshared Secret

IPsec Primary Gateway Name or Address: 0.0.0.0

IKE Authentication:

Local IKE ID: Domain Name
Peer IKE ID: Domain Name

IKE (Phase 1) Proposal:

Exchange: Aggressive Mod
DH Group: 2
Encryption: 3DES
Authentication: SHA1
Life Time: 28800

IPsec (Phase 2) Proposal:

Protocol: ESp
Encryption: 3DES
Authentication: SHA1
Enable Perfect Forward Secrecy: Checked
DH Group: 2
Life time: 28800

In advanced tab, the only thing checked is Keep Alive.

PHONE

Server: 50.XX.XX.209
IKE ID: VPNPhone
PSK: *****
IKE Parameters: DH2-3DES-SHA1
IPSEC Parameters: DH2-3DES-SHA1
VPN Start Mode: Boot

Password Type: N/A
Encapsulation: RFC
IKE Parameters: DH2-3DES-SHA1
IPSEC Parameters: DH2-3DES-SHA1

Copy TOS: No
File Srvr: Blank
QTest: Disable
Connectivity Check: Never

Errors

1/3
IKE Phase1 received notify
Error Code: 3997698:18
Module: NOTIFY:305

2/3
IKE Phase2 no response
Error code: 397700:0
Module: IKMPD:353

3/3
IKE Phase2 no response
Error code: 3997700:0
Module: IKECFG:1184
0

Telecommunications

Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.