Voice Over IP

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

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Hi, in a an recent update iPad update, I now have the apps "Voice memos" in my iPad; something I was hoping one day to happen since I use the apps a lot in my iPhone.  Is there a way to have the same functionality like apple notes that if I do a note in my iPhone it will appear in my iPad?

Thank you

just in case, the icon of the apps:
voice memos icon
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Dear All

I have been testing Microsoft teams direct routing and this has been working really well for me but I cannot find any documentation for the below scenario, would anyone be able to point me in the right direction?

We don’t want to give everyone in the company a DDI but rather have extension numbers so what I would like to do is have 1 main office number and all my users will have extension numbers off that. So all my users out going calls will be presented as my main office number, for incoming calls and external person will need to dial the main office number and then once answered they can dial the extension number.

Is this possible?
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After upgrading our Cisco Communications Manager to 12.5.1, we have SOME phones that are unable to get an IP address from the publisher or subscriber.  Additionally, with some other models we needed to power cycle the phones.  The model most affected is the 7841, but not all of them are problematic.  We have factory reset a bunch, set static ip addresses, all to no avail.  I am interested in what could be the issue with DHCP and any steps I should take to fix it.  The phones in question are typically stuck at "verify your network settings" screen or some other network message.

We have a case open with TAC, but I wanted to get real live end user suggestions.  Thank you for any assistance you can provide EE!
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Does anyone know if there is a good soft phone or virtual phones for users to use in place of handsets?

Just wondering what people are using instead of handsets as alternatives.
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At a customer site we have a VoIP server running. The customer complains that the some voice conversations are not going well. Even with collegues next door.

The network guys have checked the network and told that there is no problem on the network. They tell that the voice server has not enough troughput or that the network card has an issue.

is there a software that i can install on the server to monitor the lan? i want to know what the max network troughput asked is. Not a measure like speedtest.net i want to know how much is asked when calling.

The server is windows based to i need a windows software.
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Hi there,

I'm looking for a solution to make a 3 way voice call between 3 sites and hang 5 lines off each of those sites.

Two of the sites have 1 PSTN line only and one site has two PSTN lines, and each location would like 5 POTS/physical handsets to be able to use at any given time (not cell phones).

Site A - 1 PSTN
Site B - 1 PSTN
Site C - 2 PSTN

Each location also has IP connectivity between the 3 sites but it is setup like a WAN so is a closed network and there is no internet breakout. Therefore no hosted solutions can be used.

So far this says simple PaBX either traditional or IP based.

Each site can call out which is fine but there maybe times that each of the sites need to be on the same call together and have more than one handset from each site join a call.

The bit that I'm not clear on is if each of the sites want to have a 3 way call between them and have each of the 5 local lines connect into the same call. Would the easiest way to do this be simply have a PaBX system on each of the 3 sites and have two off the sites (A and B) with 1 PaBx dial in to the site with the 2 PSTN sites (Site C). Then have the PaBX on site C merge the calls?

This seems a little clunky, is there a better way to do this? Is there an VOIP/SIP solution that would work better?

Trying to keep this uncomplicated and keep margin for error to a minimum so simple PaBX solution was my initial thought. If this is the best solution, does any one have any …
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I have someone who has VOIP service in Franklin North Carolina named Vanilla Soft.  The have an ATT hot spot because there is really not many ways to get internet out in the woods.  She works from her computer using VOIP and the cheap internet connection.  Sometimes it works great and other times it does not work well.  Is there anything I can troubleshoot to optimize her VOIP connection on her Windows computer.  She does not have many options to upgrade her internet line so we have to try to figure out how to make this situation better.  Thanks for your advice.
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Could someone please help me understand what needs to be done transitioning from Cisco VOIP to Avaya?  Specifically, Option 242 that needs to be configured on DHCP Voice Pool? The client claims that the phones are staying in Data Vlan (Vlan 1) and not going over to Voice Vlan (Vlan 900).

The setup is pretty straight forward. There is one building (3 closets total) and only 2 Vlans: Data and Voice.  

Vlan 1 10.12.0.0/16 Data
Vlan 900 10.13.0.0/16 Voice

The Cisco 2921 Router is configured for Voice DHCP like this:
!
ip dhcp pool VOIP
 network 10.13.0.0 255.255.0.0
 default-router 10.13.0.1
 option 150 ip 10.13.0.10
 dns-server 4.2.2.2

10.13.0.10 is the Call Manager IP.

I believe there is an Avaya server (controller) onsite that will be acting as DHCP for the new Avaya phones.

What needs to be done for the Avaya phones to obtain 10.13.x.x IP addresses and not 10.12.x.x ? I've read about Options 242 (or 176) that need to be configured but I'm not sure how to go about it. I haven't really worked with Avaya phones before.

What about LLDP? The switches are Cisco, 2960x. Switchport are configured to access vlan 1 and Voice vlan 900.

Any help would be appreciated!
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VoIP - My customer reports that their phone lose connection to the hosted service every day.  They have to reset multiple times per day.

I will be onsite sometime tomorrow (April 11) - hoping to be able to access some expert assistance.  Meanwhile, if somebody could point me to a link that I'm sure exists, to help me in troubleshooting VoIP.  I'm good at networking, but have minimal experience in troubleshooting VoIP.  Thanks in advance.
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I'm trying to add a VM to a user in Exchange and I keep on getting this error.  We use 3CX as our VoIP system, in a VM, and Exchange is where the VM is stored.

Starting yesterday, when I try to add a VM to a user, I keep on getting this error. NO changes to my 3cx server or Exchange, so this is odd.

I checked my event logs app/system, and didn't find anything that would point to an issue.  
Also did a wireshark capture for 10 seconds on my exchange during the time I received the error, and still, I didn't see any issues in the wireshark that could be a problem.  
I looked on my 3cx system, in the logs, and nothing shows up there as an issue.

I don't think this would have anything to do with it, but my manager disabled TLS 1.0 on our exchange server to make it more secure, so I doubt that would have anything to do with it?

Not sure what else to do, any thoughts?
exchange VM
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I have a Vlan set in one Layer3 Dell 6248 switch, this vlan purpose is to connect our PBX, I have two subnets, my Native has the scope 192.168.16.0/24 and the vlan 7 has 10.11.0.0/24 now if I have my facts right I created the vlan in the switch  and gave it IP 10.11.0.5 255.255.255.0 with IP Helper Address 192.168.16.40 that in it self should be able to route to my DHCP server where I created the 10.11.0.0 scope, I think that I have everything cover so I can plug phones into the switch and they will be able to reach the 10.11.0.0 subnet to get an IP from that scope but I connect the phones that are programmed to look for vlan 7 and they cannot reach, but some of my devices that are in 192.168.16.0 scope are reporting to the  10.11.0.0 scope, can anyone help me to understand what did I do wrong ?
Switch.JPG
DHCP.JPG
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Does anyone know how to unlock a Shortel desktop phones (model 210 for example) to work with Ring Central?
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Need to save money on Verizon Portable MiFi

I spend about $45/month for unlimited bandwidth and wonder if I can save money with pay-as you go?

I use almost none each month.

Who can I switch to and still have the Verizon cell network, or similar?

Thanks
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Dear experts,

I have Cisco voice gateway routers and I need to know if there are any fax lines active in this organization. Is there a way to figure it out and what is the process?
unfortunately, the company does not have enough info but they have many MFP printers with fax lines and are working.

Thank you
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Hi Experts,

We are moving to a new Mitel Cloud service and have IP485G phones.

I setup a VLAN on our switches along with a DHCP scope on a windows 2012r2 DC.


We receive the correct IP, router, dns  from the VOIP VLAN but the option .156 is not populating in order to get config files and firmware updates.

I am using the string below configServers="update.sky.shoretel.com"  

Thank You
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I am looking for a way to check the trunk and the DID charged  for the 3cx which is currently setup and working properly.
How can check these information?
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Several clients have expressed an interest in getting a blocking service to prevent junk phone calls from being received on their land lines.

Is there a filtering service that can work with VOIP provided by  Xfinity, FIOS, Optimum Online, and other providers?
Is there one for those using copper wiring?

I have been using RoboKiller on my iPhone, and I've been happy with that service.
Something like that for land lines would be great.

Thanks.
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What is the easiest way to configure Cisco switches to use Vlans and Trunks?

- 6 Cisco switches
Fiber in
- VoIP
- PC
- IP cameras
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We have an on-premise Skype for Business installation and require international dialin numbers for telcos.  Is there a way / service / provider / solution on how to offer international dialin numbers in combination with our on-premise Skype for Business installation?

Thanks
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Hi Experts,

I have a problem with my Cisco SPA504G VOIP handset.

The horizontal red light at the top of the phone comes on when I receive a message.

I want the red light to be off all the time, as I receive my messages by email.

I changed the Cisco SPA504G configuration, Voice / Ext 1 / Call Feature Settings / Message Waiting to "no".
That turned the light off, but it came on again when the next message was left.

Regards,
Leigh
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Hi Experts,

We are merging with another company. Our current challenge is that we will be moving users to different locations before the merger is completed. and they would bring their current  phones to  the new location and we are on 2 different systems.

The acquiring company has a Mitel cloud phone service and we have a Shortel on premise service.

The routing between both companies will be in place this week, so we should be able to route the traffic. The phones are on different VLANS, So the thought was is that we would need to add the acquiring company's subnet and VLAN ID to our layer 3 switches in order to pass the traffic out of our network to the Mitel cloud and not to our local Shoretel PBX for service

Would this work?

Thanks
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Hello Experts,

I want a tornado warning siren that is 2 min long. The file should be

No spaces in the filename
.WAV file
16-bit
8000Mhz
mono

Can someone direct me to a free download link?
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I am a network admin and looking at our switching infrastructure. I feel like it is not efficiently built, and it is aging. It consists of HP Procurve switches, some of them are V1910's, newer ones are 2530's. (Several were purchased to support a VoIP phone system). All switches are connected with trunks- this takes up 4 ports per trunk and only communicates at linespeed. What I think needs to happen is I need to build a new core switch infrastructure, remove the aging equipment, relegate the newer switches to edge roles for client connections, and select adequate infrastructure for the core equipment... whatever I get, I am planning to use cascades so we don't end up using half the ports to trunk and get better performance. Our network is not complex- we have an MPLS, an inter-building fiber link, 2 VoIP VLANs, and 3 subnets at this location. so we wouldn't need more than 8 VLAN's- right now everything except the fiber and the phones are on the same VLAN and separated by routers- I think that using the VLAN capabilities of the new infrastructure could replace routing equipment and optimize the network further. So my question is, assuming we are keeping the newer HP Procurves (The newest are actually Aruba's), which have GBIC's but no cascade ports, should we use Cisco's for the core switches, or stay brand-consistent with HPe/Aruba, which will become the edge switches? Any model or feature recommendations?
Thanks for the help!
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We are having a strange issue with our Skype for Business.
Its been running just fine for sometime now but we have some external clients that are having an issue with our Skype ids.
What's happening is that we can send them a skype message and they receive it, but when the try to reply back to us, it eventually times out for them, and we don't get their reply.
Also when they bring up their list of other clients including ours, ours show up as status, Presence Unknown
Does anyone know what I can check to see why our IDs would be appearing to them as Presence Unknown?
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Cisco Unity voicemail to email logs

We have a Cisco phone system and it is set up to send the user an email each time they get a voicemail.
Some users reports they don't get the voicemail emails and I want to start troubleshooting it by looking at the email logs.
If I look at our O365 email logs, Message Trace, I don't see anything from the phone system going to any user. I know it works for me so I looked at the O365 email logs for me but there's nothing there from the phone system.

Where would I find the log that shows me the email with the voicemail attachment?

SMTP settings in Unity are set to Port 25 and the SMTP Domain is "domain"-cuc1."domain".us
The SmartHost is set to our internal SMTP relay (nothing in those logs either)

Grateful for any help!

/Mats
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Voice Over IP

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).