Voice over Internet Protocol (Voice over IP, VoIP) is one of a family of internet technologies, communication protocols, and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

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51 views

How to use fax with my VoIP

Well the site seems to be Hide Park for networking experts. To be honest I am not any expert at all. I followed my friend have recently got a business plan (for my new business) from Axvoice because ...
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2answers
181 views

DHCP and ip assignment with VoiP

We just added a Cisco SPA122 ATA with Router to our network, it will be used for our paging system (an amplifier/speakers). We are having a hard time getting it work. Well until we found out the ip ...
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326 views

ShoreTel P2V Audio Issue

I recently P2V'd my ShoreTel server. After doing so everything seems fine. No errors anywhere, and everything looks good in Director except for a licensing issue since the mac address changed. ...
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88 views

Voice over ip setup for small business [closed]

I have no experience with Voip but if I wanted to use VIOP in a business with around 50 viop phones spread over 3 offices would I need to use some sort of voip Server or do most routers these days ...
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802 views

How can I call my voicemail in Bluebox Freeswitch?

I'm using Bluebox to manage Freeswitch. How can I call my voicemail? If I dial my extension it takes my to the part where I need to record a voicemail. If I dial 4000, *89 or 879 its just doesn't ...
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416 views

Click to call with a soft phone

I'm trying to set up click to call with a soft phone. I'm using QuteCom for the soft phone, vTiger for the CRM and Asterisk, through Elastix for the PBX. I was wondering if someone could point me in ...
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2answers
1k views

Cisco Phone (7961) won't find voice vlan

We have a cisco phone system setup successfully. I am setting up a bunch of phones, of which, one keeps getting an data vlan ip address from the DHCP server. Any suggestions? I have factory reset ...
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364 views

Asterisk Sip trunk though a PIX 501 firewall

I'm using an asterisk VOIP server, and I'm able to make called though with my SIP client. The problem I get is one-way voice. I can hear the incoming voice but the caller can not hear me. I have no ...
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961 views

Setup Cisco RVS4000 QOS for VOIP

Just switched from dedicated T1's with analog phone lines to cable modem with 10/2 uplink. We're having some VOIP call quality issues on the outgoing side when bandwidth is stressed and I need to ...
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169 views

VoIP PBX dilemma

Our phones are currently provided through a local hosted VoIP company and it isn't working all that great. As a result, we have decided to move to a local PBX server and bring a few PSTN lines to our ...
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6k views

How to remove static IP from Mitel 5312 and enable DHCP

I'm not sure this is the right forum for this question -- although I'm confident I'll be told if not! -- but I've read the fine manual (at least, such a manual as I have), I've googled and I cannot ...
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136 views

Verifying hosted VOIP PBX uptime

For the second time, I'm outsourcing my VOIP hosting to a provider, whom I have to trust their sales pitch of 45 minutes down per 365 days. Is there an automated way I can test their server(s) ...
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826 views

Embedded VoIP (Asterisk) install in home router?

Is it possible to flash an average home wireless router with a new OS that includes an embedded PBX server to route VoIP calls (such as Asterisk)? Does the average $50 router in the living room have ...
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42 views

Recommendation needed: IVRS + VoIP solution in Linux

I know there are some solutions on IVRS and VoIP in some Linux distributions, but I am not sure which one is reliable and stable. Or should I custom build a Linux dedicated for these services? Please ...
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2answers
550 views

Setup wiped Polycom phone without SIP server

I'm troubleshooting a Polycom SoundPoint IP 550. I have wiped the hard disk of the phone (via a menu option) and now it's stuck in a reboot cycle. Apparently the only way to setup the firmware of the ...
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2k views

VoIP phones getting back ip address: problem with dhcp zone or vlan

I have some Mitel IP phones that are giving me trouble on a network I recently inherited. I literally came in on for my first day supporting the system on Monday 12/28 to find the fiber connection to ...
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2answers
793 views

Asterisk & IVR & provider

I'm trying to setup an IVR or to be more specific an automated attendant using Asterisk. I don't want anything fancy besides the simple automated menu system, and instead of dialing an extension (for ...
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1answer
17 views

Make an authenticated SIP call via URI

I'm trying to redirect a phone number to a SIP address that's only accessible when authenticated. Given the following, how would the SIP URI look like (if possible) ? SIP Server: sip.example.com Auth ...
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243 views

Can't dial through SIP trunk: FreePBX/Asterisk

I set up a SIP TRUNK in FreePBX/Asterisk that works perfectly for incoming calls. Here' s the relevant configuration: type=friend host=201.217.31.10 callerid=mynumber ...
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20 views

Use VOIP through small switch

Probably a silly question but I have to ask. I don't know much about VOIP. We have a location with a large room now being used as an office for 2 people. There is one network cable ran to this office. ...
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2answers
71 views

routing for iax-protocol does not work on pfsense

I have problems with a pfsense-box routing iax-traffic (UDP port 4569). Our company has a central office and eight branch-offices. At the branch-offices we use pfsense as firewall and VPN endpoints ...
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1answer
278 views

One-way audio problems with SIP over AT&T

I have a customer who has an VOIP PBX connected to a Level 3 fiber connection. He has offices all across the country using different ISPs. Two of those offices use AT&T, both in different states. ...
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169 views

Asterisk relay between multiple subnets

I wonder what's the best way to go when you have phones on multiple networks which are not directly reachable. I have 3 networks 10.3.x.x 10.6.x.x 10.17.x.x My asterisk server resides on the ...
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451 views

Asterisk inbound trunk unauthorised without allowguest=yes

I am trying to configure an Asterisk (Elastix) box to receive SIP calls from a provider without requiring allowguest=yes to be enabled in sip.conf. Basically the SIP trunk provider uses multiple IPs ...
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1answer
1k views

DHCP For Voice And Data VLANs With Router-on-a-Stick

Background: I have 2 Powerconnect 62xx switches stacked with a Watchguard XTM-26 between them and the outside world. Currently all devices connected to the switch are in the same vlan and the ...
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7k views

Cisco ASA 5505 - NAT or Port Forward for SIP / VoIP ver 8.4

I just had an NEC PBX installed that lets me use SIP trunks for VoIP services, My gateway is a Cisco ASA 5505 running 8.4 and I only have one public/static IP Addresses. So far, my trunks are ...
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241 views

Custom ENUM/NAPTR DNS Server

I need to configure custom DNS server to handle ENUM requests for VoIP calls I have custom built DNS server in Java that handles ENUM requests for my company's VoIP services. ENUM is used to ...
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1answer
162 views

Variable to store Asterisk extension dialed by user

I am using Asterisk for voice calling. I am using below context If user call back- [from-pstn] exten => _X.,1,Playback(demo-thanks) suppose my number is 74900 on which user can call back. ...
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562 views

Asterisk dialplan context and label clarifications

I have been learning Asterisk dial plan for the past week.I have written down a simple IVR system with two levels of menu and an exit option.I have used concepts from different tutorials on the ...
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2answers
961 views

Skype Connect and Elastix for incoming and outgoing calls

I ordered Skype Connect, And i want to integrate skype connect with my Elastix server to handle incoming and outgoing calls. I created new SIP Trunk through GUI with the following info : ...
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1answer
1k views

Elastix call-center with computer telephony crm integration

The title isn't explanatory enough but I can't explain it better. I want to setup a call-center using elastix which would have the following feature: Suppose bob(client) calls the center and ...
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132 views

Can a “4 line” Grandstream GXP 2000 handle 8 lines?

We have a whole bunch of GXP 2000 phones here but now we're growing too big for just 4 incoming lines. We use Trixbox (asterisk) for the phone system with 4 analog lines coming into a Dell server. ...
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271 views

Get Asterisk/Freepbx to ignore digits that were unnecessarily dialed (area code for local calls)

This is the second part of this question, worded better. Remove local area code on outbound calls, and remove "dial 1" for long distance in Trixbox/Asterisk I have removed the NEED to ...
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476 views

Voip, connect to asterisk servers over WAN with A580 base station

I have LAN infrastructure with asterisk and SIP phones(Gigaset A580) in it, I have done port forwarding on my public static ip address to my asterisk server in my LAN network, I also have trunk which ...
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1answer
462 views

How to configure Transparent IP Address Sharing (TAS) on a Mediatrix 4102 with DGW 2.0 firmware?

I am making the switch to VoIP. I chose voip.ms as my service provider and Mediatrix 4102 as my ATA. One reason why I chose the Mediatrix over other popular consumer ATAs is that it's supposed to be ...
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1answer
942 views

How to pass/process extension numbers while calling Freeswitch from outside SIP gateway?

Suppose I have Freeswitch, which has SIP gateway configured. So, the local users of this Freeswitch can call outside via <extension name="russia"> <condition field="destination_number" ...
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1answer
1k views

How to associate a softphone with a phone url

I'm trying to get click to call to work using Qutecom for a softphone and a Greesemonkey script to turn phone numbers into clickable urls. Whenever I click on the phone number link I get an error ...
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1answer
216 views

Make VOIP-phone Cisco SPA504G to receive only 1 call

I don't want the phone to receive more that 1 call. So if an operator have one ongoing call, a new incoming call will received busy signal. As far as I understand, there is no option to set this ...
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1answer
593 views

Cisco site-to-site VPN, Site B has voice but no data or internet access

I am working on my first Cisco project. Site A has a Cisco UC520 with working VoIP phone system configured. Site B has a Cisco 880 router. My goal is to connect each site with this VPN connection. ...
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2answers
269 views

Want to use GSM Asterisk AX4G card

Im a Asterisk newbie, i want to setup a simple PBX with inbound and outbound calling. I have zeroed on "GSM Asterisk AX4G card" as the telephony card. While purchasing this card on their website they ...
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1answer
779 views

Isolate Multiple WAN Connections on Sonicwall

I currently have a cable connection running through our Sonicwall firewall providing WAN access to users. We have a fiber connection coming in shortly which will be used for IP telephony. I would like ...
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145 views

SMB IP PBX system guide

we're a small but expanding service provider and currently still have a rather old Nortel PBX system which either lacks some of the features I'd like to see or is impossible to configure without ...
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972 views

pfsense multi-site VPN VOIP deployment

have main office pfsense firewall configured like this: local networks WAN -> internet LAN -> local network VOIP -> IP phones need to connect remote offices (multi-users) and single remote users ...
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2answers
979 views

Flashing Cisco SPA942 phone with SPA504G firmware

I have a Cisco SPA942 phone, which is no longer supported by Cisco. It's running the latest firmware available for this phone: 6.1.5(a). Cisco replaced the SPA942 with the SPA504G, which is almost ...
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1answer
1k views

How do I configure the SIP source interface on a Cisco router so that it sticks?

I manage a cisco router acting as a SIP gateway. In order to get it to register to the SIP provider, the connection needs to come from the right IP address. This is done with the following lines in ...
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119 views

Linksys VOIP System Layout

I am completely new to VOIP systems and I want to learn how to setup a small business VOIP system. I understand that for a small business, there is 1 physical phone line that comes in with phone and ...
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260 views

Identifying VoIP Users

I'm looking for a way to identify as many consumer VoIP users on my ISP network as possible using packet analysis. My setup is like this: On my core switch, all traffic going in and out of gigabit1 ...
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1answer
86 views

Power supply specs for an Avaya 4624IP VoIP Handset?

I've got an Avaya 4624 IP VoiP phone that I've ordered a power supply for, but it's still likely a week away, and I'd like to test now. I can't find the power requirements anywhere. I was hoping ...
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107 views

Is there an easy way to disable CallManager Express in a Cisco CME Router?

I have a small network with about 10 Cisco 7900 phones being run by a Cisco UC520 16user Router (info here). I am looking to move to a Hosted VOIP solution and would like to reuse my 7900 Series ...
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102 views

Grandstream GXP2000 unresponsive

I have two Grandstream GXP2000 hardphones that power on (the LEDs all come on green), but the display is blank, and the switch doesn't recognize the phones as being connected. In the past, this has ...