• Long distance monitoring SIP servers and proxies

    We have a data center hosting our sip servers and proxies. The location is far from our main office. How can we monitor the servers and the lines?

    TeachMeIT975 pointsBadges:
  • Routing between two subnets & between two networks

    1. I have two separate networks 192.168.0.0 and 192.168.1.0, they are physical connected by CAT5 cable. What should I configure and where to configure so that the host of each network can connect to another host in other network? 2. I have two subnets (after subnetting a class B Network), they are...

    Chinmoymohanty0 pointsBadges:
  • Firewalls and SIP trunks, t38 faxing not working

    We have installed a voip system from Interactive Intelligence (Indianapolis Oh). We get dial tone from two sip trunks for inbound and outbound calls. Works great. Between sip router, and server, is a firewall. Firewall does not play nice with t38 faxing. Anyone have a similar setup that is working...

    AnchorS380 pointsBadges:
  • Cisco 7965 and remote SIP server not working

    Hey guys, I have this very weird problem and I just can't fix it.. any ideas would be very appreciated! I have a Cisco 7965 ip phone here on my desk. I have a tftp + sip server running in a datacenter and it seems the phone fetches all the data from the tftp, but can't connect to the SIP server....

    Chrisss15 pointsBadges:
  • (Cisco VoIP) PGW Softswitch SIP OK SDP towards ACE SBC media address mismatch

    Fault: During the setup of some calls (approx. 1 in 600) a SIP invite is sent from the customer towards the SBC and eventually towards the PGW.  The PGW after the expected messages responds with a SIP OK towards the SBC with SDP containing the info for the remote media endpoint (in this case a...

    Breakmylegs5 pointsBadges:
  • Carrier SIP trunking

    What hardware resources does a carrier need to deploy SIP Trunking Services to current TDM users?

    Jaimito10 pointsBadges:
  • Running SIP proxy server as a virtual machine

    What role does the SIP proxy server play and what issues would we see if it goes down? Can we run it as a virtual machine and have a backup one in another VM?

    TeachMeIT975 pointsBadges:
  • Blocking sniffers from catching SIP/VoIP traffic

    Can we block wireshark or ethereal from being able to run on our Windows 2003 Active Directory network? We want to block sniffers from catching sip/VoIP traffic.

    TeachMeIT975 pointsBadges:
  • Does cellular routing technology exist?

    What is the technology that would allow a call from a cell phone to be routed to a transmission device that triggers a loud beeping sound. For example, using a cell phone to call a number that calls a database, and then triggers an external receiver that is attached to one's keychain for example?

    Crosbycurious5 pointsBadges:
  • VoIP voice quality differences

    I am trying to commission a network of Cisco Call Manager Express systems with (mainly) Cisco 521 phones connected to a private IP network for a corporate client. Prior to the "proper" solution being introduced a temporary solution using Asterisk with Grandstream GX-2000 phones was installed to...

    Vendome15 pointsBadges:
  • Tool for determining how many SIP proxy servers are needed for installation

    How can we determine how many sip proxy servers are needed for a new installation? Is there a tool for this?

    TeachMeIT975 pointsBadges:
  • SIP Trunking

    Why od we need SIP trunks. VoIP calls can be made over Networks without it. What is the advantage of SIP Trunks

    Chuckychas5 pointsBadges:
  • Network Connection Freezes

    For some reason, at random, among 20 PCs on my network, in the morning or during the day, the network connection stops responding for both intranet and internet communications. The only solution thus far is to remove the NIC from the Device Manager, reboot the PC, and let Windows XP Pro find the...

    DboiSOBE0 pointsBadges:
  • SIP on Asterisk

    when i make a phonecall between 2 softphone via Asterisk server. so asterisk server as a registrar server or location server or UA like B2BUA? i don't know about it. please help me.thanks

    Kid161235 pointsBadges:
  • Convert PSTN to SIP to use cell phone as cordless phone

    dear All, I’m all new to VoIP and telephony in general and don't know the correct terminology...probably someone else already posted my questions in another thread but I managed to confuse the search engine with my query terms. Anyways... Basically I have a PSTN telephone line on which an ADSL...

    Adpiga5 pointsBadges:
  • Dell Optiplex GX520 hibernation/sleep mode issues

    Hello, We have several Dell Optiplex GX520's on the network running Windows XP pro. They randomly fall into sleep mode. Moving the mouse will not wake them - you have to push the power button to get them out of sleep mode. Also we are not able to remotely wake them to do patch updates or remotely...

    Jmello0 pointsBadges:
  • Are there any large scale SIP based analog/IP converters out there?

    We are deploying a large scale VoIP system based on Asterisk and SIP, but some of our warehouses want to keep using the existing analog phones. Are there any large scale SIP based analog/IP converters out there? Or should we be looking for a different approach?

    Unified Communications ATE660 pointsBadges:
  • Microsoft OCS SIP and VOIP audio codes mp-124 issues

    we are in a Microsoft OCS SIP and VOIP environment. we are having a couple of issues with our unit.  #1- out bound calls to the PSTN will auto disconnect after approx. 60 seconds. calls to OCS or VOIP phone numbers have no problems. #2- Inbound calls do not ring the analog phone; however,...

    ITKE62,455 pointsBadges:
  • cisco call manager Ethereal/Wireshark Captures

    Hi. Does someone has Ethereal/Wireshark captures of the signaling flows associated with the establishment of calls to/from CISCO Call-Manager to/from a SIP network. thanks

    Jakelino5 pointsBadges:
  • Switchvox AA350

    I have a switchvox AA350 SMB server in my organization which I run. Recently I aquired analog lines for external calls. I put two of the lines into the switchvox (the server came with a four port anolg card)I configured the lines and I was able to make calls through my SIP phones.Yesterday I came...

    Bchika45 pointsBadges:

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