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.

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Would it be a lot of data loss from SM to MM?
We have fiber from ISP [10Gb] is 9/125 SM going from SC to LC then into our LC 50/125 MM then into SM switch network module with SFP.

Would I have a lot of issues with that setup?

 I also read some people are using mode conditioning cables.  Will that help a lot?
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Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

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How can you tell what DIDs are associated with an AT&T PRI? I've migrated pretty much all of my traffic to a SIP circuit and I want to start cancelling circuits.
Should the circuit ID to DID mapping be on the bills?
Skype (Windows 10). The Video Button has disappeared from its position on right side top - alongside the telephone icon. Have tried for answers without success. What does this signify?
Has it anything to do with paying money.  It is not a problem with my computer, as I have opened the account on a second computer with same result.
I always get confused / use firewall / router rules so infrequently that I don't know  what the right way to set these things up.

Can you help?

I have a VOIP service using a Grandstream HT-502 V1.2A gadget.  The call quality isn't always good.  That device is plugged directly into one of the ports on an actiontec router (left over from when we had verizon fios, but now we have cable internet 15down / 5 up speed.

I have lots of other devices plugged into a gig network switch in the basement that might be using the internet at the same time as the calls?  That gig network switch has 1 cable going over to the actiontec also (so there's only 2 cables on the lan side of the router).

To improve call quality, that's a job for QoS, right?

The attached picture is what I did in the actiontec router.  The grandstream has the ip of

But then i thought, should this be on the Ethernet/Coax or  Broadband Connection (Ethernet/Coax) sections? Did I at least get outbound rather than inbound correct?

But that just gets the call out of the house with highest priority.  Once it's on the web, it's fighting with all kinds of data / can't prioritize it, right?

Does the VOIP provider have any bearing on the quality of the calls? Iwe are using  is there  a way to substantiate / test where the poor qiuality - dropped fractions of a second in the conversation, etc.  NO stuttering, max headroom type things.  Just a m ssing sound here and there.

And most …
related question/answer¬ificationFollowed=206569166#a42538269

Using verizon wireless for residential (not business)
is there a way to have both phones ring at the same time

*71 is one phone and then the other
related question:

Since you have Verizon, you can do this:

Calli *72 plus the forwarding phone number, including the area code (e.g., *72-555-555-5555). You will hear a confirmation message.

This works with all phones with Verizon service, not just iPhones.

Dial *73 to stop forwarding. You will get a tone or message.

Can I have both phones ring

I this answer only gives me second phone ringing.
I have several Mitel 5220 IP phones that I need to convert to gigabit .....   What is the easiest way to do this .?

I have an implementation of 3CX with soft phones . Recently i add also telephone (IP/VOIP) except of soft phone. the IP telephones are working properly but now  I need to export the contacts from the soft phone to IP telephone.

I am looking for a step by step instructions how to do it.
could I have 2 incoming skype phone numbers

can I receive (not send) sms to skype united states phone number
iphone 6
verizon united states cell phone

how can I forward all calls to another phone number

do I need to use verizon or can I use iphone (no jailbreak. I dont want viruses or errors with jailbreak).
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The 14th Annual Expert Award Winners

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Anyone knows if there is a way to change a hostname in Polycom SoundStation 7000?   So it would broadcast an actual hostname instead of the make/model name.
Easier to manage and troubleshoot.
I have a client experiencing voice quality issues and their voice vendor is asking us to perform some Wireshark packet captures.  They have a Netgear GS724TPv2 PoE switch, which supports port mirroring, so according to NEC's instructions I mirrored the ports the PBX and IP phone are connected to and made the port my laptop is connected to the probe port.  I run the captures, making test phone calls from the IP phone, but NEC is saying the captures aren't showing any SIP traffic to/from the PBX and the IP phone.  

I don't run packet captures very often so I'm hoping an expert out there can confirm if the configuration I am running the captures in is correct?  Thanks in advance!
Does COMCAST have poor quality phone service?

I switched yesterday from Verizon FIOS to COMCAST and had terrible telephone calls today on the land line.

I think we were sold >100 GPS upload speed. So, I doubt the poor quality is due to a slow internet connection. But maybe the old Verizon FIOS phone number was what they called a POTS line, a Plain Old Telephone Service line. Those were the ones where you cold hear pin drop.

Did I move from a POTS Line to an Internet based phone? And is that the cause of the major drop in quality?

My new modem is...

Dual Band Wifi

The phone cable goes into the back.

Would an Internet phone do better?

Is there anything I can do?

I really despise having poor phone quality and may go back to Verizon to escape a bad connection.


Avaya IP Office 500 switch/hub going into a patch panel. - All seems OK

Running Avaya  IP Office 8.1 Manager on the PC. Our phone system is no longer greeting callers. It just rings and rings and rings.
I'm able to ping the gateway and static ip. Everything was working up until a few days ago apparently.

I tried rebooting the Avaya and also the IP Office 500 Switch.

Any ideas or direction is greatly appreciated.

TY All...
I've been tasked with the possibility of upgrading our offices phone system.
Our current phone system runs off CAT3. Newer systems CAT5 or better. Our network is pretty old. I don't have CAT5 everywhere there is a phone and not even everywhere there's a computer. Those users end up on wifi. Anyway, from what I gather we can use a passthrough on the phones to connect the phone then the computer back to the network. We've got about 55 users and about the same amount of phones in our main office. Our plan was to also roll out VPN phones to multiple locations as we have jobsite trailers all over several states.

Is it advisable to use the passthrough on these phones? Or is having a dedicated line going to be significantly better? We also have a few places in the building where I've had to add a few small switched and I'm concerned we'll get some call degradation because of this.

Like I said, our network is a bit older and a lot of it has been band-aid fixes by adding some wifi AP's and daisy-chaining a few small switches in some areas for additional personnel over the years.

Personally I'd love to have our building rewired but I'm not totally sure it's necessary, however I don't want to cause more problems or increase load on a network that's barely adequate as it is.

If you need more info from my I'd happily provide it. I'd like some advice from anyone else who's done similar upgrades or implemented phone systems on current networks.

Is there a way to setup a PBX phone at home that handles calls like a business without having to pay for a service?  If so, how would I go about doing that?
When I use The Microsoft Connectivity Analyzer for Skype for business connectivity I get an error when it is attempting to obtain the SSL certificate from remote server. please see attached.
Our chairman calls his assistant and dictates emails over the phone for his newly hired assistant to type and send out. Sometimes she has difficulties to keep up with him and we really need a device, program or something for her to record his conversation and listen to again ?
A client has a VOIP phone system, and a Comcast gateway. On the gateway, one cannot turn off  SIP/ALG, which makes the VOIP  calls inconsistent.  They have an unmanaged switch now that cannot be programmed to remove the SIP/ALG disturbance.  What I need to a 24 port gigabit switch that can be programmed to remove this SIP/ALG  setting and produce VLANS to segment the phone and other traffic.

I'm wondering budget-wise whether the Netgear JGS524E would allow me to turn off SIP/ALG as well as create the necessary VLANS.  If not, can you recommend one?
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Cloud Class® Course: Python 3 Fundamentals

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Hello -

I'm looking for a solution for a portable conference phone. Currently I'm using a Polycom Soundstation that works with an analog line. The quality of sounds is obviously is not great so I was wondering if there is a more modern solution that could help with our needs. It would be for a room with about 20 people around a long table so I need to make sure there is decent range for them to be heard over the phone. I was looking into something like a Jabra Speak 710 UC Wireless Bluetooth Speaker device that would work with a cell phone but I'm worried about quality of sound over a cell phone connection pushed to a BT device.

Any help would be appreciated.
I have a mobile phone which is a LG Optimus L70 (LGMS323) and the carrier is Ultra Mobile.  I have now a gifted Apple iPhone5.  My question is if I can transfer the SIM card from the LG to my apple iPhone5, and the phone number will function as the old LG.  Thank u and regards
Hi guys,
Just got a general question. When I walk into a environment, how do I find the phones are whether digital or analog ? Any way to find by looking at into phones ?
If phones has Ethernet cable , they are ip Phones. Like wise how do I differentiate between analog/ digital ?
What is sip trunk ?
Here's an easy one for ya...  I've done this before in Google Voice but I can't seem to find the feature to enable forwarding to our VoIP system for whatever reason
We are a VOIP startup based in Singapore and need some advisory in this front. We plan to offer services to two different segments ;

1.      Residential voip – essentially to people who want to call out locally and to foreign destinations. Primary objective is to provide international calling capability to foreigners residing in Singapore at low rates (usually 1 cent per minute for calls to popular destinations) in contrast to high rates charged by local telcos.

2.      Business VOIP / PBX / SIP : essentially to a business (which in itself can be group of employees). Each employee can login using a softphone like Zoiper / bria etc. Then there can be call groups, IVR etc.

We are currently battling with software components and best options. Have had calls with few providers but the solutions they provide seems bit rudimentary. For example for some of them billing solution is not adequate. Free minutes can not be accounted adequately.

So can experts recommend a software solution which is reasonably advanced and can take care of upto 1000 clients. I guess we need here a class 5 softswitch + a hosted multitenant solution with webportal for tenants.

The key we are looking for is a sophistication which can help us to scale.

We are ok with quality paid services from hosted switch PBX providers, and dont mind having 1: 1 call with experts to discuss further.
First call immediately goes to the voicemail on Iphone X.  User didn't change any settings and restart didn't help either.
Any ideas?


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.