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Questions tagged [sip]

Session Initiation Protocol is one of the protocols used for controlling sessions (signaling) in internet telephony.

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8 views

SipML5 Javascript based SIP client session event terminate not receive when session terminated by the caller

I recently testing on the Javascript based SIP client sample program with freeswitch server. I have tested 2 javascript based SIP client sample program and both of the sample program having the same ...
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7 views

How to check incoming SIP trunk works

I have a 3CX PBX setup with sip trunk which registers OK, but sometimes callers state they can't get through (various errors from "there is a fault" to silence). When I try the line myself, it seems ...
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28 views

Asterisk audio isn't transmitted properly, rtp packets sent to public IP

I've set up an asterisk server in a VM and set the networking mode to Bridged. I'm trying to make a call using sipML5 demo from another computer in my LAN. It's receiving the SIP packets as desired ...
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6 views

'Make' command after 'configure.py' never ends [WINDOWS]

I have been trying to install the SIP module to install PyQt4 for Python 2.7 on Windows 10. I downloaded the newest SIP package, I extracted (on a subfolder of 'My Documents') and executed the ...
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86 views

PJSIP PJSUA python no sound but call OK on Raspberry

I have an Asterisk server on one Rasp and on another I would like to make a SIP client. To do this, I installed PJSIP, and I found this little code from their tutorial to make a phone call. I ...
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1answer
24 views

How to block a pcap pumped by tcpreplay from one server by iptables on the other?

I am new to stack exchange. What I am trying is: I am pumping traffic from one server by the following command: tcpreplay -i ens3 ~/daniel/sipdump.pcap from server 1 And I am capturing the traffic in ...
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16 views

Correlating multiplex RTP streams to SIP SDP in VoIP

I'm trying to understand more about RTP multiplexing, i.e. where a single RTP session defined by its 5-tuple is used to send more than 1 RTP media streams. I've read that this could happen in cases ...
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24 views

Zoiper SIP to Digital Ocean Asterisk: Nothing happens on any test call

So i have a Zoiper app on cell phone and I'm trying to make a test call on a new Asterisk server with Digital Ocean. It connects and registers just fine, and seems to at least acknowledge I'm trying ...
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1answer
100 views

Asterisk sip.conf in MySQL database

I'm able to include a phone inside a database for realtime usage. So, this code (from /etc/asterisk/sip.conf): [phone] type=friend username=phone secret=12345 host=dynamic disallow=all allow=g729 ...
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201 views

How to setup Asterisk NAT on docker for Windows

I need to setup a docker container running an Asterisk PBX. The problem is that I receive the wrong ip in sdp replies. In fact Asterisk is using the container internal IP. The second problem is that ...
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78 views

On a PBX (Asterisk) determine which phones are connected

I am using Asterisk as my PBX. On my sip.conf I used to have this option enabled: [general] ... qualify=yes more info about qualify can be found in HERE. Thanks to that option I was able to tell if ...
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735 views

How do you fix “No Trust List Installed” error on a Cisco 7942G VoIP Phone?

I have a 7942G. I'm trying to connect it to Asterisk. Looking at Settings -> Status -> Status Messages, I see this: Error Updating Locale SEP############.cnf.xml No Trust List Installed I'm only ...
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2answers
243 views

Converting a P.O.T.S line to VoIP and simultaneously ringing a extension over VPN

Anyone with knowledge please help. I have analog phone service + internet at SITE 1. I only have internet service at SITE 2. When the phone rings at SITE 1 I would like the PC or an attached phone ...
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1answer
46 views

Ekiga under Windows: registered but calls fail

I have a VoIP account with sub-accounts. Sub-accounts are assigned 3-digit extensions and I can call between sub-accounts using regular desktop phones connected to my ATA. Now I am trying to set up ...
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1answer
433 views

twinkle configuration for Sangoma

I'm able to run AsteriskNOW virtualized on my local system. Also, I'm using Anveo on two different SIP hard phones. Anveo works fine, indicating that the network handles SIP fine. Now, how do I ...
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2answers
319 views

How to setup a voip server connected to a ISP voice line

My home fibre bradband ISP provides me with a Huawei HG8240 optical network terminal. This has one ethernet port and one phone port. The phone port is active, but unused at the moment. The ethernet ...
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1answer
1k views

Asterisk initiate call through sip notify message

I have a Yealink ip phone on my desk and I want to remote control it so that I can place the calls from my computer instead than by typing the numbers directly on the phone. This link explains how to ...
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1answer
120 views

How will a call get routed with incorrect LRN in SIP request?

I was reading about frauds in telecom. I read about an LRN fraud in which the fraudster would change the LRN in the SIP invite to a cheaper destination. How will the call get routed with an incorrect ...
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1answer
42 views

IPSec doesn't hide IAX2 informations

I am trying to setup a secure truncked IAX2 connexion with IPSec between routers: But when I make sniffing attack with wireshark, all call's informations are showen ! IPsec is well configured and ...
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1answer
244 views

(ringinuse disabled) (Invalid) has taken no calls yet

I had a freepbx server in place. I setup a queue with static agents and ring all strategy. Now, suddenly no body in the queue will ring once the call routed to the queue. I check the queue and found ...
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1answer
125 views

Using a VoIP router behind a DrayTek 2760 router

I'm struggling with the following problem: I use a DrayTek Vigor 2760 as router 1 to access internet by using a VDSL line. The DrayTek behaves as a Modem and DHCP server with IP 192.168.1.1. My ...
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1answer
131 views

Keeps detecting SELinux as enabled even though I disabled it (When trying to install FreePBX)

I was following this guide to install FreePBX on CentOS 6.9 (minimaslist), everything worked, until the last step to install FreePBX: ./install -n from /usr/src/freepbx, I keep getting the follwing ...
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1answer
153 views

Default port for calls with Asterisk

I have AsteriskNOW 11.9.0 with FreePBX 2.11.0.43. I moved Asterisk to a non-standard port number, but now I can call extensions only if I specify the port number explicitly in a callee's number, for ...
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0answers
113 views

SIP based door entry and phone system

For a residential home, we've allowed for a door entry system, where we'd like to the following: Push button at door entry panel calls all intercom stations (handsets) - audio only From any intercom ...
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1answer
40 views

jitsi account “name” or “default identiy” sticks and cannot be removed

how do I change or remove where it shows a "name" above offline to the right of the silhouette of the user and below the files tools help menu? I removed all accounts. I'm only using Jitsi for SIP ...
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0answers
148 views

Testing my GNU Ring installation

I've installed GNU Ring on my system, but, frankly, none of my friends use it (none that I know of anyway), so I don't have anyone to call. I'm planning to invite someone to call me up on Ring, but I ...
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1answer
368 views

PPPoE connection type with VoIP service

Two VoIP ATA adapters is used for VoIP service, adapters are in different offices, but within same VoIP service networks. The PPPoE connection type is used in ATA for VoIP service: is it possible to ...
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1answer
1k views

Reroute all internet traffic through a tinc tunnel

I want to route all internet traffic (including udp for sip) through a tinc tunnel (https://www.tinc-vpn.org/). To set up the tinc tunnel is quite straight forward. After starting the tinc daemon on ...
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0answers
200 views

Unable to accept incoming calls on Polycom VVX 410

I'm using a Cisco DPC3848 cable modem running in bridge mode. I have a microtik CRS125-24G-1S-2HnD router behind it. I can make outbound calls on it no problem, but if I try to make an inbound call ...
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1answer
708 views

Why SIP-ALG in routers and modems?

We currently are using a NetSapiens based VoIP system and have extreme problems with a lot of consumer grade routers and modems due to SIP-ALG not being disabled or not being able disable. So if SIP-...
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0answers
829 views

Installing Python module sip 4.19.1 on Windows 7

I've got a problem with installing SIP 4.19.1. What I have done by now: - installed Anaconda (for Python 3.6) with compiled SIP 4.18, - pip install sip "Successfully installed sip-4.19.1" - and ...
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1answer
630 views

Kill a listening port for a specific IP

I have a SIP server with multiple network interfaces. (virtual) When I execute the command netstat -nlput it shows the all listening IP and ports as below. root@DUO-CALLSERVER004:/etc/init.d# netstat ...
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1answer
109 views

Setting my ISP's modem to let me call via my landline when I'm not home, using its internal hidden SIP server

My ISP offers to his VDSL users the ability to use any smartphone as a cordless home phone, using an official app. They provide no documentation or source code, but someone managed to de-obfuscate ...
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1answer
162 views

Set sip/tel URL/LSHandler back to OS X Mac Continuity/Wifi Calling instead of Skype

I recently installed skype for business and it hijacked my Mac's ability to make calls via my iPhone (Continuity) or Wifi Calling. I wanted to know how to set it back, but I figured it out before i ...
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183 views

Linphone on Windows Server 2012, with multiple users

Im going to explain everything first. We have Windows server 2012, where our users are connecting to (lets say around 60-70 per server). After Linphohe installation and first start of the application (...
2
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1answer
624 views

Linphone SIP INVITE providing wrong IP on multi-NIC system

I'm trying to use Linphone on a Windows 7 machine that is connected to multiple networks (via 2 different NICs). It works fine with a single one connected, but when both are connected I only get one ...
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1answer
588 views

Incomming local SIP calls. What's the cause?

I have Linphone installed on Linux. There is default identity set to me@192.168.1.100. I keep getting incomming calls from numbers like 100@192.168.1.100 or 7070@192.168.1.100. What is the cause of ...
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1answer
153 views

Connect Normal calls to Asterisk Server [closed]

I am trying to develop a phone system just like vitelity. I am using asterisk as backend. Main problem is to connect pstn call to my asterisk server. that is when i dial a number from my phone(...
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0answers
785 views

SIP ALG detector

I am trying to create a detector for SIP ALG. I really just need to know what the BEST method of testing this is so I can write a program to test whether SIP ALG is enabled or disabled. Thanks
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1answer
650 views

is this failed SIP call due to firewall or NAT?

I'm trying to find out why this call failed, with: <--- SIP read from UDP:63.247.69.226:5060 ---> SIP/2.0 100 Trying and then Everyone is busy/congested at this time (1:0/0/1) full debug ...
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3answers
258 views

how do I provision a hard phone for getonsip?

In provisioning a Cisco SPA 942 hardphone, branded Linksys, how do I finish the setup for getonsip (or onsip)? SIP Address: foo@getonsip.com Username: foo Domain: getonsip.com SIP Password: ...
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1answer
219 views

SIP server name Defaults to $VERSION for Cisco SPA 942 hard phone

In reading the fine manual for a Cisco SPA 942 IP phone, branded as Linksys: what is, in particular, meant by: SIP Server Name Server header used in responses to inbound responses. Defaults to $...
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1answer
346 views

How to make international phone calls from my computer' through my SIP server?

I'm currently working for a scientific company, and I'm the only programmer here, and the company wants me to use one of their servers to setup a SIP server, and somehow be able to make calls to ...
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1answer
58 views

SIP forwarding via DNS. Possible?

Let's say I have an address sip:john.doe@example.com that I would like to use for Internet calls, but my SIP provider is Callcentric and I need to route such calls to sip:17775551234@callcentric.com. ...
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1answer
854 views

Which folders are affected by System Integrity Protection?

I have trouble writing files with sudo to /Library under OSX v10.11.3. It seems the folder is affected by SIP. Which folders fall under SIP?
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1answer
875 views

I need to spoof the source IP of a packet

I'm running some tests for a security project and here is the scenario. I have a SIP server (SBC) that accepts calls from a list of IP addresses. I have a SIP INVITE packet and I want to send to that ...
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0answers
1k views

linphone: remove/hide “default identity”

Linphone automatically generates a computer-local SIP identity called "Default Identity". "Real" SIP accounts you have at a VoIP provider need to be created as "Proxy accounts": The main window has ...
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1answer
127 views

What is: Keep port forwarding of the Internet router enabled for telephony

When using a fritzbox with attached phones in bridge mode behind another router, manufacturer avm suggests to enable the option Keep port forwarding of the Internet router enabled for telephony, ...
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0answers
45 views

Why is my sip software calling 105

I have a very bad sip provider "vbuzzer" but there prices are cheap ,they don't have an app for android (there is one in the store but i am pretty sure it is not official ,and a scam) and their ...
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1answer
523 views

Cannot see VOIP calls in Wireshark 2.0.0

I received a pcap dump from a site, running Cisco JTAPI, who's VOIP traffic I need to analyse. I use Wireshark's VOIP calls analyser via the menu: The conversations display fine in Wireshark v1.10.8, ...