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- About t_bennett
04-11-2018
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07-08-2005
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
08-21-2012
11:09 AM
08-21-2012
11:09 AM
Is there any difference in quality of the lines/trunk themselves? I am having issues with Postage Machines at the sites. We can get them to work fine on PRI sites, however if the Postage Machine is trying to connect over a CO trunk the handshake fails. It seems to come down to the input gain/outout attenuation/impedance settings on the voice-port connected to the CO trunk. I can get it to work occasionally but its not consistent. Its basically two modems connecting to each other, same as a fax session. We also have some sites that have B1 lines instead of CO/DID trunks. The B1 lines will be terminated on FXO ports on the router and be configured as a single trunk-group for all inbound/outbound calls. I am curious if the B1 lines will have the same amount of static/noise on them as the CO Trunks. Is a B1/POTs line more clean than a CO Trunk, even if they are both terminated on FXO ports? Thank you for the response
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
08-21-2012
08:17 AM
08-21-2012
08:17 AM
I am currently deploying Cisco VoIP to a number of sites. Some of these sites currently have B1/POTs lines, some have DID & CO trunks. Is there a difference between a CO trunk and a regular land line/B1? Can you terminate a CO trunk directly on a analog device like a Fax machine? The question is probably elementary but I cant find anything specific on the differences between them.
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
05-06-2012
11:22 AM
05-06-2012
11:22 AM
Not sure where you are getting at with: Paolo Bevilacqua wrote: As mentioned above: The Ericsson W35 includes dual POTS interface (FxS) http://www.ericssonw35.com/pdf/W3xTechnical%20Product%20Description.pdf I know it has two FXS interfaces, one is for an analog phone, and the other is supposed to be for a fax. However, there has to be a way to use this as an analog gateway for your entire CUCM or CME environment. Like I said, I have gotten it to work with CUCM before, but now I am trying with CME. In its current state I have one 7961 registered to CME and one analog phone connected to one of the FXS ports on the same router, they call each other fine. Now I am just trying to get them to use this cellular device as a way to place and receive inbound calls from the PSTN. The GUI for the device doesnt have any sections to modify the telephony side of it, its very plain. So will I need an FXO interface, or is there a way to use an FXS port in this situation?
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
05-06-2012
10:30 AM
05-06-2012
10:30 AM
The documentation doesnt say much about it, I am kinda using it in a different manner. Althoug... it does have 3G and is a access-point (has ethernet ports).. I wonder if it would be a supported SIP gateway. The last time I got this to work was using MGCP to control the port. This time its connected to a CME router, so I am trying to get this work via cli and H323. I dont have a VIC2-2FXO, only a VIC-2FXO which doesnt work in the 2800s so I can try it on my lab until I get a few pieces in this week. Really the logic is the same as many people going with backup cellular data lines instead of the DDR days of ISDN BRIs, only this is using voice. If I somehow can get the FXS port on the router to stay on-hook until a call arrives at the basestation which will signal the port to go off-hook...then it would work perfect. An FXS port can be configured to tie directly into a PBX, it doesnt always have to plugged into a phone, fax, etc. There are the trunk and tie-line commands for that. I think I am just missing something for the FXS port to go ON-Hook when a call is not comming in. Then when a call is sensed, it can use plar to ring a number of a hunt group or shared lines, whatever. I could just register it to my CUCM cluster as an H323 gateway and see what happens.
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
05-05-2012
09:13 PM
05-05-2012
09:13 PM
A few years back, when CCM 4.3 was around, I had to convert a celluar type basestation into an analog gateway for some IP phones on our companies network. This was out in Iraq, so land lines were out of the question. I got this working, but I believe I was using a MC3810 w/ an FXS port and running H.323. For my lab, I ordered an Ericsson W35 cellular base station and bought a cheap prepaid SIM card to put in it. I figured it was another was to get access to the real PSTN. I am trying to get this to work on a 2801 running CME. The basestation is connected to an FXS port. I swore I used an FXS port in Iraq, but I am starting to think that it might of been an FXO (because I cant get this working). Basically, my goal is to have all my IP phones use it as an outbound gateway, and also users from the outside can call the number assigned to the SIM and it can be translated to hit a hunt-group or however I want it to work. The part I am having trouble with is just getting it to work with inbound or outbound calls. I believe the problem boils down to is that the FXS port is always in an Off-Hook status because its connected to the basestation. I have tried different signaling methods, connection methods (tie-line, trunk), etc. I cant get it to work. I get a fast busy as soon as the IP phone finishes dialing the number because that port is already Off-Hook and busy. Is there a way to accomplish this with an FXS port? There isnt any kind of configuration methods on the Ericsson device, I already looked at the web gui and its all very basic. It works fine when I plug an analog phone directly into it. But when I plug the line into an FXS port on the 2801 I cant get it to work. Any ideas for configs?
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
05-03-2012
11:34 PM
05-03-2012
11:34 PM
Just to rule out the card itself, I put a VIC-2FXO in the NM-HDV slot and it didnt show up either. However the VWIC-2MFT-T1 do show up on the onboard WIC slots and of course in the NM-HDV. Looks like I will be buying a VIC2-2FXS... Thanks for the help!
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
05-03-2012
11:26 PM
05-03-2012
11:26 PM
I just put the VIC-2FXS in the NM-HDV and it still wasnt recognized. There is documentation out there that states the 3700 supports the VIC-2FXS though, but I did see the table in this thread that said it didnt. Strange...
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Created by
t_bennett
in IP Telephony and Phones
in IP Telephony and Phones
05-03-2012
10:44 PM
05-03-2012
10:44 PM
I am using a Cisco 3725 router in my home lab as the PSTN. I have a VIC-2FXS that I was trying to use on one of the three WIC slots however when typing a "sh run", "sh diag", or "sh ver" the 2 FXS ports do not show up. I do have an NM-HDV module with the VWIC-2MFT-T1-DI in it, and its showing up in the config. I havent tried putting the VIC-2FXS in the NM-HDV yet because, according to Cisco docs, the VIC-2FXS is supported on the 3 WIC slots. I upgraded the IOS to Advanced Enterprise from IP VOICE and that did nothing. I also have 4x PVDM12 on the NM-HDV module and the AIM-VOICE-30 installed on the motherboard. On the 3700s, do they support VIC cards on the onboard slots? Or do you have to put them on a NM-HDV module? Side Note: The LEDs are showing amber on the VIC-2FXS so I dont believe its defective. Thanks EDIT: Thanks everyone, so the answer is No, its not supported on the 3725 natively (onboard WIC slots) and even on an NM-HDV, BUT you can buy a cheap NM-V1 or NM-V2 and it works. Best scenario if you are using one as a PSTN switch, the NM-2V and (2) VIC-2FXS is the cheapest way to go. You still have the bottom slot for the NM-HDV for staging PVDMs (no onboard PVDM slots) and 1 or 2 T1/E1/PRI cards and 2 on-board AIM slots to support the AIM-30-VOICE DSPs.
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Labels:
08-21-2012
Is there any difference in quality of the lines/trunk themselves?I am
having issues with Postage Mac...
08-21-2012
I am currently deploying Cisco VoIP to a number of sites. Some of these
sites currently have B1/POTs...
Created by
t_bennett
in IP Telephony and Phones
05-06-2012
05-06-2012
Not sure where you are getting at with:Paolo Bevilacqua wrote:As
mentioned above:The Ericsson W35 in...
Created by
t_bennett
in IP Telephony and Phones
05-06-2012
05-06-2012
The documentation doesnt say much about it, I am kinda using it in a
different manner. Althoug... it...
Created by
t_bennett
in IP Telephony and Phones
05-05-2012
05-05-2012
A few years back, when CCM 4.3 was around, I had to convert a celluar
type basestation into an analo...
05-03-2012
Just to rule out the card itself, I put a VIC-2FXO in the NM-HDV slot
and it didnt show up either. H...
05-03-2012
I just put the VIC-2FXS in the NM-HDV and it still wasnt recognized.
There is documentation out ther...
Public Statistics
| Date Registered | 07-08-2005 05:58 AM |
| Date Last Visited | 04-11-2018 12:18 AM |
| Total Messages Posted | 9 |
