similar to: estimation on phone network capacity

Displaying 20 results from an estimated 8000 matches similar to: "estimation on phone network capacity"

2008 Mar 24
3
Unable to obtain dialed number through ZAP
Hi all, This is not a repeated post as I am just adding more information for my previous post. Asterisk version 1.4.18 TDM card: Digium TDM411B Zaptel version 1.4.9.2 Line: PSTN line I tried to obtain the dialed number using $DNID and $CDR(DST) . All of these variable returns 's' I also tried exten => _3345335,n,Noop(this is ok) where 3345335 is my number but it does not go there.
2008 Mar 23
3
Unable to capture CallerID through Zap
Hi all, I am using Digium PCI board to receive PSTN call through regular phone line. It is no problem for me to receive calls, but I am not able to obtain the Caller ID if the calls are from the phone line. exten => s,1,Answer() exten => s, n, Verbose(1|incoming number is ${CHANNEL} calling to ${EXTEN} routing to ${phonenum} ) exten => s,n, Verbose(1|callid is ${CALLID(num)}) exten
2008 May 21
1
T38 fax solution with Asterisk possible?
Hi, I am looking for a very low cost way of receiving and sending T38 fax reliably. Is there any possible solution using Asterisk as the PSTN SIP gateay and Digium E1/T1 card? Is there other open source package that can help to accomplish this purpose? Regards, Mark -------------- next part -------------- An HTML attachment was scrubbed... URL:
2008 Nov 19
4
question about connecting with Mobile Base Station
Hi, Is it possible to connect Asterisk with a mobile base station to handle call switching? What kind of protocol will I need to use to convert to sip? Any pointer or info will be greatly appreciated. Best Regards, Mark -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20081119/e74ef6b1/attachment.htm
2008 May 14
3
Question about SS7
Hi, I have read about SS7 recently and learnt that it is a signalling protocol used in PSTN for call management, setup, etc. The thing that I don't understand is how SS7 plays a role in VOIP. When I make calls between landline and Asterisk via PSTN, I don't need to do anything with SS7. Is it because the SS7 signalling is already done by Asterisk already? From the prespective of
2011 Nov 03
15
DID from Direct from Telco
Hello Everyone, Unlike going through DIDx, DIDLogic etc.., we have an option of getting DIDs directly from local telco Bell Canada. Currently our SIP Trunk provider assigned a DID to us, and as you know, they just redirect requests it to our PBX. However, when dealing directly with a telco, what equipment will we need? Basically giving us the same capability as a DID provider. If someone can
2009 Jul 23
2
Analog FXO or IAX DIDS for new facility?
I am a Linux sysadmin who has been tasked with developing the phone system for our nonprofit's new US headquarters building. We cannot bring our legacy phone system with us, so I am building this completely from scratch. I have already read "Asterisk: The Future of Telephony" and done a fair amount of googling. I am completely sold on Asterisk, and the new building's
2008 Mar 18
3
capacity
Hi, I am planning to deploy an Asterisk system to supply 4-6,000 students with voicemail capabilities. The system will be set up with non-DIDs, route incoming calls to voicemail, then send an email notification. Anyone with some ideas on how I should go about spec'ing the server this use? - Eve Ellen -------------- next part -------------- An HTML attachment was scrubbed... URL:
2008 May 30
1
SPA 3102 unable to detect hangup
Hi, I have a Linksys SPA 3102 using as ATA. The call routing is : Phone -> PSTN -> SPA 3102 -> SIP Proxy -> Asterisk The problem I am having is that when the phone hangs up, SPA 3102 can't detect it and relay the CANCEL message. Is this problem with my SPA 3102 config or it just works like that by default? Thanks in advance for your help. Regards, Mark -------------- next
2010 Apr 14
3
Converting GSM calls to SIP
I have asked a GSM operator in my country if he can route a number or a short code to my asterisk server via SIP (since they dont give DIDs in my country) the operator said they do not support SIP, they have no way of converting GSM calls to SIP to then send them to me. I would like to know what is needed from the operator side to do this, what kind of material is needed, or what can be done from
2015 Nov 18
4
Linux ate my RAM...
Hello everyone, Excuse the title. I'm trying to do something very specific that goes against some common assumptions. I am aware of how Linux uses available memory to cache. This, in almost all cases, is desirable. I've spent years explaining to users how to properly read the free output. I'm now trying to increase VM density on host systems (by host, I mean the physical system, not
2008 Nov 18
1
sound quality between two back-to-back asterisk
Hi, I have two asterisks that are connected to each other via a back-to-back E1 link using a pair of sangoma cards. With the following scenario: SIP-PHONE <-> Asterisk <-> E1 <-> Asterisk <-> SIP-PHONE, the sound quality degrades significantly. I can't understand why as the amound of packet lost should be very minimum. Does anyone know why? Does it have anything
2008 Mar 24
3
How to capture destination number when receive call through ZAP
Hi all, I am using Digium PCI board to receive PSTN call through regular phone line. It is no problem for me to receive calls, but I am not able to capture the destination number through the ZAP channel exten => s, n, Verbose(1|destination to ${EXTEN} ) ${EXTEN} returns 's' instead of the actual destination number. Since I have multiple phone numbers, I want to be able to route
2008 Feb 27
3
About faxes recived through a PRI and passed to a fax machine connected to a FXS port
Hi, all I want to configure a few FXS ports in an Antribank-16 to be able to receive faxes sent throught a PRI: E1 ==>Zap * ==>FXS * ==>Fax machine My asterisk box has a Digium TE120P (for the PRI). Versions are *=> 1.4.17 | Zaptel=>1.4.8 | libpri=>1.4.5 The Astribank is not configured yet, because I am a little bit confused about how to do it. Let's say I configure
2009 Jan 13
4
What are the various models of DID providers
Hi, Inspired by a recent rant about one particular provider, I am getting very curious about something I've never mastered. I'd like someone to explain this here or at least post a link or two that can educate me and probably countless others who have no knowledge in this area. I'm sure there are several of you reading this that know all about the subject. What are the various
2004 Sep 14
4
Memory oversubscription
Hi. First of all, thanks for Xen. It''s terrific! I''m interested in doing memory oversubscription and am wondering if Xen can do this (now or in the future). For example, on a machine with 100MB available physical memory, can I: 1. Create a domain with a 90MB allocation 2. Inflate a balloon in that domain and return say 40MB back to Xen I know there are mechanisms for doing
2008 Mar 26
2
customizing faxrcvd in PHP
Dear all, I am working on customizing hylafax's faxrcvd script into PHP. Does anyone has any sample or guideline that can share with me to give me a quick start? Two questions I have are: 1. How to simulate the receival of fax without actually sending one? 2. Where can I find the log that is "echo" from faxrcvd? 3. How to I config Hylafax so that it uses my PHP script instead
2013 Jun 22
2
SIP Trunking Mantra (Origination)
Hello Everyone, We are currently having talks with various service providers, and trying to determine what the best way is to interconnect in order to have access to the PSTN network. As you know there are two ways of doing this: Traditional PRI: Have trunks grouped into a transport layer such as OC3/12. With DIDs attached to the group. As you many know, this approach would also require a POP
2006 Apr 26
1
Intergrate Asterisk IP PBX with Legacy PBX, continuing existing funtionality of legacy pbx
Hi All, I would like to explain the layout that i am trying to achive. I am so helpless on this regard. So here is the story ........ " This is with regard to the setup which you can find at the "Asterisk The Future of Telephony" , chapter 11, page # 196-197, I am attaching the picture for your information. Now I am taking a challenging step to of integrate IP PBX with our
2007 Oct 12
5
Affordable SIP Trunk for Home PBX ?
So I have my asterisk box up and working internally at home and all is good so far. The next thing I wanted to do was make and recieve calls to regular land lines now. I don't have a POTS line and was looking for probably a SIP trunk. I have seen mentions of Skype integration with Asterisk, but does that include say Skype IN and Skype OUT ? Or is that integration component really just for