[asterisk-ss7] [HELP]:Suggestions needed in choosing proper channel Type in zaptel.conf for SS7 network

[Kristian Nielsen]

"Satish Chandra" <satishchandra.lko at gmail.com> writes:

> I am trying to develop a Tapping device that can be used in a SS7 network. I am
> not able decide on a particular channel type which I should configure in
> zaptel.conf. The device needs to sit on a SS7 (T1/E1) link. As I will be
> duplicating signal using a tapping (Y-shaped) wire, I need not to send any
> signal from the device. So, in a way the device will just receive signals and
> will not transmit any.
>
> I read about mtp2 channel type in one of the article but was not able to find
> any documentation for its configuration in zaptel.conf
>
> I need suggestions whether I should use this channel type for this scenario or
> some other.

In chan_ss7 there is already the ability to dump the SS7 signalling stream
into files in pcap format, which can be fed directly into wireshark etc.

However, you would have to rip our all of the sending stuff and upper layers
(MTP3/ISUP). I am not sure how a `tapping wire` work, but I assume you don't
want to send any MTP2 frames.

> Kinldy tell me how to configure.

Sounds to me like configuration is not sufficient, rather you need to extract
relevant pieces of code from chan_ss7 (or libss7) and work from there.

 - Kristian.