Sriram wrote: > Hi Experts > > First of all apologies for my ignorance about ss7 as i am new to it > ..I provide some premium voice service to telcos, earlier i used to > work with PRIs and dialogic card, asterisk fascinated me when i had a > look at it..my provider says he'll provide me a ss7 link now - in > dialogic world this means i need a septel card (quite expensive).. > > i bought a TE420P and played with it using PRIs and SIP extensions...i > read that this card supports ss7 ...my questions - (please forgive me > if they sound silly !) > > 1. Is ss7 just like a PRI cable ? or is it a V.35 like cable that acts > as ss7 signalling ? do i need anything in addition to TE420P ? In most cases it is like a PRI. In some old US setups though, they still use a V.35-ish interface. Most likely though, you will get your signalling channel over a DS0 on one of your E1s (or T1s if you're in the US). > 2. how do i do the actual connectivity ? See the README file in libss7, or the sample chan_dahdi.conf with Asterisk :-) > 3. i read chan-ss7 and libss7 provide the ss7 support on asterisk > ...is libss7 (the open source one) reliable ? I would say that libss7 has become quite reliable. Using the current version (of libss7 and Asterisk-1.6.0 branch) I have a setup that has been running for nearly a month doing over 100,000 calls per day. > 4. "where do i insert" the ss7 link ? and how do i test it.. Into the E1/T1 port.... :-) Matthew Fredrickson Software/Firmware Engineer Digium, Inc.