Benjamin Hoskins
2004-Mar-10 17:50 UTC
[Asterisk-Users] IAX Connection-Latency/Bandwidth Question
Hello! I am new to * here and have a question.... We are installing * currently in the US. We have a small remote office overseas. We would like to enlarge that office to about 20 people using IP phones. My questions are: 1. I pinged the website of the ISP twice from the dsl line I am on which perhaps is not as fast as our T1 line in our office but the following is the average ping times were 216ms, 229 ms, 133 ms, 142 ms, 329 ms, 251 ms ( that enough? :) ) Is anyone running IAX connection with this type of latency? How is the quality of the connection? 2. Is 2 MBPS DSL fast enough to handle the connection for 20 users? Thank you for your information. Ben
Dean Collins
2004-Mar-10 17:55 UTC
[Asterisk-Users] IAX Connection-Latency/Bandwidth Question
Ben, Are you going to be routing all of your calls from the remote office back through your pabx onto the PSTN or are you assuming that they have no need for local calls? If so how many calls do you expect over the network at any one time? Cheers, Dean -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Benjamin Hoskins Sent: Thursday, 11 March 2004 11:50 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Hello! I am new to * here and have a question.... We are installing * currently in the US. We have a small remote office overseas. We would like to enlarge that office to about 20 people using IP phones. My questions are: 1. I pinged the website of the ISP twice from the dsl line I am on which perhaps is not as fast as our T1 line in our office but the following is the average ping times were 216ms, 229 ms, 133 ms, 142 ms, 329 ms, 251 ms ( that enough? :) ) Is anyone running IAX connection with this type of latency? How is the quality of the connection? 2. Is 2 MBPS DSL fast enough to handle the connection for 20 users? Thank you for your information. Ben _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Benjamin Hoskins
2004-Mar-10 18:02 UTC
[Asterisk-Users] IAX Connection-Latency/Bandwidth Question
Dean, I'm a newbie but....Yes, we are going to route all of our call from the remote office through our local office and then to the PSTN. We want to beef up our customer service so they will all be talking at the same time. Ben ----- Original Message ----- From: "Dean Collins" <dean@collins.net.pr> To: <asterisk-users@lists.digium.com> Sent: Wednesday, March 10, 2004 4:55 PM Subject: RE: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Ben, Are you going to be routing all of your calls from the remote office back through your pabx onto the PSTN or are you assuming that they have no need for local calls? If so how many calls do you expect over the network at any one time? Cheers, Dean -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Benjamin Hoskins Sent: Thursday, 11 March 2004 11:50 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Hello! I am new to * here and have a question.... We are installing * currently in the US. We have a small remote office overseas. We would like to enlarge that office to about 20 people using IP phones. My questions are: 1. I pinged the website of the ISP twice from the dsl line I am on which perhaps is not as fast as our T1 line in our office but the following is the average ping times were 216ms, 229 ms, 133 ms, 142 ms, 329 ms, 251 ms ( that enough? :) ) Is anyone running IAX connection with this type of latency? How is the quality of the connection? 2. Is 2 MBPS DSL fast enough to handle the connection for 20 users? Thank you for your information. Ben
Dean Collins
2004-Mar-10 18:25 UTC
[Asterisk-Users] IAX Connection-Latency/Bandwidth Question
Ok so Benjamin, can I take it from your comment about beefing up customer sales that you are going to run an off shore call centre and the majority of your calls are going to be coming externally from the pstn into your asterisk then out your dsl connection to the overseas site through their dsl to their ip handsets. Is this correct? Is the dsl service 2mbs up and down? Cheers, Dean -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Benjamin Hoskins Sent: Thursday, 11 March 2004 12:03 PM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Dean, I'm a newbie but....Yes, we are going to route all of our call from the remote office through our local office and then to the PSTN. We want to beef up our customer service so they will all be talking at the same time. Ben ----- Original Message ----- From: "Dean Collins" <dean@collins.net.pr> To: <asterisk-users@lists.digium.com> Sent: Wednesday, March 10, 2004 4:55 PM Subject: RE: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Ben, Are you going to be routing all of your calls from the remote office back through your pabx onto the PSTN or are you assuming that they have no need for local calls? If so how many calls do you expect over the network at any one time? Cheers, Dean -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Benjamin Hoskins Sent: Thursday, 11 March 2004 11:50 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Hello! I am new to * here and have a question.... We are installing * currently in the US. We have a small remote office overseas. We would like to enlarge that office to about 20 people using IP phones. My questions are: 1. I pinged the website of the ISP twice from the dsl line I am on which perhaps is not as fast as our T1 line in our office but the following is the average ping times were 216ms, 229 ms, 133 ms, 142 ms, 329 ms, 251 ms ( that enough? :) ) Is anyone running IAX connection with this type of latency? How is the quality of the connection? 2. Is 2 MBPS DSL fast enough to handle the connection for 20 users? Thank you for your information. Ben _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Ping times (latency) and bandwidth are really not related unless you are filling the pipe. Your ping times are too high. My understanding is that anything over 100ms is not good. Your problem probably lies with too many hops or slow or overburdened router along the path.
Dean Collins
2004-Mar-10 19:59 UTC
[Asterisk-Users] IAX Connection-Latency/Bandwidth Question
Better program to use is Neotrace just googled up this link for a downloadable copy http://www.networkingfiles.com/PingFinger/Neotraceexpress.htm Not sure of the differences between this version and the pro version I use but shows node by node or world views etc. Also just noticed that Mcafee have bought the company (not a bad ending for some Australian boys). Also 100ms is way too low to consider it a cuttoff point, I think you will do fine with 300 ms for what you need it for, congestion issues is where I think you might have problems. Cheers, Dean -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of admin Sent: Thursday, 11 March 2004 1:40 PM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] IAX Connection-Latency/Bandwidth Question Ping times (latency) and bandwidth are really not related unless you are filling the pipe. Your ping times are too high. My understanding is that anything over 100ms is not good. Your problem probably lies with too many hops or slow or overburdened router along the path.