at cisco's r2 debug.. how can we know if cisco is sending a group I/II or group A/B signal?! and is there any send/recv flag at the log that? (similar to the telco logs?); -- using R2 signal table we can try to "guess" whats happening. =/
I know R2 protocol debugs are not easy to read but this always help:
ds_do_dial: dialing string SEND
vtsp_report_cas_digit: Digit begin: RECIEVE
Regarding how can we know if we are sending a group I/II or group A/B signal ?
Always keep in mind the R2 protocol behaviour. (Forward and backward signals) and the DNIS|ANI.
Forward signals are signals from the calling party toward the called party and are classified as Group I or group II signals.
Group I signals conveys address information including DNIS and ANI.
Group II signals convey address information about the calling party such as priority level. Backward signals are signals from the called party to the calling party and are classified as Group A or Group B. Group A signals acknowledge Group I signals and convey additional information, such as congestion. Group B signals acknowledge Group II signals and provide called party information.
debug voip vtsp all
debug vpm signal
debug vtsp tone
Good things to check in debugs:
ADDR_INFO_COLLECTED (DNIS=7001, ANI=6004)
STATE: R2_IN_CALLERID R2 Got Event X
For Group I
In summary if we understand deeply which signals to expect either send or receive and we have all the events already collected we can find out what's happening.
The problem here is that we dont have such pretty debugs as the Telco that indicate this is B-1,A-1 etc. Adding that R2 has different behaviour in each country...,but understanding which events should appear and with the debugs collected above we can find out what is happening.
1. Introduction Internet security is important with the increasing
attacks that are happening every day. Many internet and browsing
security solutions exist, but some are not very easy to use or maybe the
question is how can I enable them? In this referen...
Cisco Software Manager Server API Guide This document describes the
programmatic interfaces, RESTful APIs, which are supported by Cisco
Software Manager Server (CSM Server). Overview CSM Server supports a set
of finite RESTful APIs. The first step to use ...
If you are using Cisco's new linux-based Cisco Software Manager server,
then you probably want to make sure there is a startup service for
it.I'll assume that you've already installed the CSM server on a
systemd-based linux system. The commands given belo...