About Andre Castro

Andre Castro · 07-25-2022

Dear friends, We have a customer with a newly installed site where phones from time to time lose their registration. They get stuck in the "Registering" state seen on their screens and only can get back working by manually resetting its configuration...

Andre Castro · 06-08-2021

Dear colleaguesI'm running a script to automate bulk commands across devices and some of them I can only access via telnet.However it seems like the connect() functions sometimes misses the login time and ends up failing:aix@N10-ACASTRO:~/pyats2$ /us...

Andre Castro · 08-13-2020

Hi guys, Recently we had to configure dns servers for our mixed-mode cucm cluster. After that, all phones fell back to non-secure status, thus preventing encrypted calls from happening. Even though we know the certificates are self signed, we were av...

Andre Castro · 11-05-2019

Dear friends,I'm a beginner on NSO services modelling and running into an issue while trying to run pyang against a yang file - described in one of the NSO lab guides.NSO version is 5.1Pyang 1.5, but also tried 1.7.8 and 2.1. Got the same errors thou...

Andre Castro · 02-14-2018

Hi folks Recently I made a python script to aid on configuring streaming URL for a customer. Pretty simple but pretty helpful, it saved me hours. Cheers https://gitlab.com/aocbrasil/cms-streamer.git

Andre Castro · 08-02-2022

Hi Nitin Just a heads up as we solved the issue indeed by disabling SCCP inspection in their firewall. Some older phones can indeed be affected by this feature. We could confirm it was being rejected, without a clear reason: 15824518.001 |14:21:12.38...

Andre Castro · 07-25-2022

Hi Nithin I got the proper info from the customer and have edited the topic. The phones acutally get stuck and cannot register back, unless they have their config reset, e.g. erase the certificates and network properties. Most likely there is firewal...

Andre Castro · 09-01-2021

Hi @Redash6174183 I think the best approach without having to program this yourself, is to configure an options ping in your sip trunk and monitor via SNMP with any SNMP server and then configure it to shoot an email whenever the trunk goes down.You ...

Andre Castro · 09-01-2021

Hi JagadishAs for question #2, PVDM is usually not required since most providers can accept G.711. I recommend you get in touch with your SIP provider in order to confirm if it is accepted though - and this is true to check for their other requiremen...

Andre Castro · 07-07-2021

Hi @renanhingel Thank you for the suggestion.Surely I can use this method but I'm still curious about the pyATS library, as opposed to Ansible for instance which runs flawlessly, there is a lot of additional overhead in it though.Cheers!

Member Since	‎07-05-2011 11:40 AM
Date Last Visited	‎03-13-2024 12:02 AM
Posts	171
Total Helpful Votes Received	274

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Phones lose configuration

Telnet login timing

CTL Update failed

Yang modelling error - pyang

CMS streaming URL configurator

Re: Phones lose configuration

Re: Phones lose configuration

Re: how to monitor SIP trunk in cisco cube

Re: Migrating from PRI lines to SIP Trunk for PSTN connectivity

Re: Telnet login timing