In Australia, Telstra, the local telco provides isdn modem for isdn connection. The modem has 2 analogue telephone jacks and a serial port for connection to dialup internet. My question is that will it be possible to use Zaptel TDM02B to connect to the analogue jack instead of getting a fritz card to do the telephony. Will there be less feature if doing so? -- David Kwok, CISSP Tel: 612 82315701 ext 1002 Iaxtel/FWD # 17001813482 ext 1002 CISSP, Certified Information System Security Professional -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 1878 bytes Desc: S/MIME Cryptographic Signature Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20040712/801993f9/smime.bin
David, If you go the analogue route: * You'll get poor audio compared to ISDN which is crystal. * Each number will act like a seperate line unlike with an ISDN card where you can receive two calls simultaneously on the same line. * You'll lose cool ISDN features like call deflection. * It won't be as reliable (speculation). * It'll probably cost just as much for two analogue cards as a fritz card. On the positive side you won't have to go through a lot of frustration getting the fritz working. In summary using an analogue adaptor on ISDN rather defeats the purpose of ISDN. Regards, Kimble Young -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com]On Behalf Of dkwok Sent: Tuesday, July 13, 2004 10:57 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Oz ISDN In Australia, Telstra, the local telco provides isdn modem for isdn connection. The modem has 2 analogue telephone jacks and a serial port for connection to dialup internet. My question is that will it be possible to use Zaptel TDM02B to connect to the analogue jack instead of getting a fritz card to do the telephony. Will there be less feature if doing so? -- David Kwok, CISSP Tel: 612 82315701 ext 1002 Iaxtel/FWD # 17001813482 ext 1002 CISSP, Certified Information System Security Professional
Kimble Young wrote: "If you go the analogue route: * You'll get poor audio compared to ISDN which is crystal. * Each number will act like a seperate line unlike with an ISDN card where you can receive two calls simultaneously on the same line. * You'll lose cool ISDN features like call deflection. * It won't be as reliable (speculation). * It'll probably cost just as much for two analogue cards as a fritz card. On the positive side you won't have to go through a lot of frustration getting the fritz working. In summary using an analogue adaptor on ISDN rather defeats the purpose of ISDN." You are absolutely spot on. I am hesitated by the sheer amount of configuration with the ISDN driver. The actual implementation is actually even a bit of complicated. The ISDN is used primarily for internet connection and voip from an Australian provider. In that case I need to use whatever driver to intiate dail up to the internet. Will it be isdn4l in this case. Now if and when internet is down for whatever reason, asterisk can still perhaps use the capi driver to connect calls. I don't have much experience in isdn at all. I am not sure where such setup can be done simitaneously. It would be nice if someone can point me to the right direction. The Telstra connection already come with Nt1 +11 modem and I have already got pretty good doc to set it up with redhat 9.0. So I don't have to worry about isdn stuff. I wish to go the correct route which is using Fritz card to do this but I am afraid it is not possible. Regards -- David Kwok, CISSP Tel: 612 82315701 ext 1002 Iaxtel/FWD # 17001813482 ext 1002 CISSP, Certified Information System Security Professional -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 1878 bytes Desc: S/MIME Cryptographic Signature Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20040712/7cfd305c/smime.bin