In the previous parts of our Cisco Voice Gateway story we identified what analog voice ports are. Also we talked about different types of analog supervisory signaling. Now let’s see how we can use our Cisco voice gateways with digital lines such as T1, E1 and BRI. These types of connection are still widely available…
Now you already know what Cisco Voice Gateways are and which types of analog voice ports they can use. It is time to discuss signaling processes on FXO and FXS ports. As it was shown earlier, voice ports on routers and gateways physically connect them to telephony devices such as telephones, fax machines, PBXs, and…
Today we are going to continue our conversation about Cisco Voice Gateways. In the beginning we defined what the voice gateways are, and now it is time to see how we can connect our VoIP infrastructure to traditional analog lines or devices. Yes, it is 2022, however the analog connections are still implemented. That’s why…
The previous topic about Caller ID issues on Cisco FXO ports was of interest to many readers, and that’s why I decided to write series of posts about Cisco Voice Gateways for beginners. I see in our classes that the Voice Gateways are always a kind of a “dark horse” to our students, especially when we…
The most visited page in my blog is CUCM SIP Trunk to ITSP connection. From time to time my readers and students ask me to explain what the difference between the Early Offer and Delayed Offer in the SIP signaling is. Let’s say your ITSP want you to use SIP signaling with Early Offer in…
Hello all! This post is a response to a question from a student of my recent CVOICE course. The question was as follows – how to drop a hardware Conference in CUCME when initiator of the Conference is leaving the session. The solution is easy. In ephone or ephone-template configuration just add a command conference drop-mode. Its syntax is: conference drop-mode [creator | local]…
Hi folks, Today we are talking about how to set up Presence feature on the CUCME (Call Manager Express). Presence allows a user (watcher) to monitor the real-time status of another user at a directory number or SIP URI from the device of the watcher. Before making a call, one can visually see whether the other…
Good morning! For those who are taking their first steps in the world of VoIP and learning how to configure Call Manager Express (CUCME), I think the following link will be helpful. The document provides examples of the simplest configuration of SCCP and SIP phones for registration on CME: http://www.i-1.nl/blog/wp-content/uploads/CUCME-cheatsheet-1.0.pdf As you can see, everything…
Здравствуйте! 🙂 Всем желаю хорошего дня! 🙂 Продолжаем наш разговор о первичной интеграции CUE и CUCME. В первой части мы рассмотрели операции, необходимые для первичной настройки CUCME. Теперь же познакомимся с начальной настройкой CUE, и для этого воспользуемся мастером первичных настроек, так называемым Initialization Wizard. Итак, открывает веб-браузер и вводим в адресной строке IP адрес модуля…
Доброе утро, коллеги! На днях занимался настройкой продукта Cisco Unity Express (CUE). Это модуль голосовой почты, который применяется совместно с Call Manager Express (CUCME) в решениях для малых и средних компаний. Он устанавливается в виде дополнительного модуля в маршрутизаторы Cisco. В некоторых продуктах (UC500) модуль голосовой почты является встроенным. Хотелось бы описать процедуру первичных настроек, которые необходимо…
Доброго времени суток! Сегодня мы продолжим разговор, начатый нами ранее – рассмотрим настройку устройств, использующих технологию SAF / CCD. Снова передаю слово Александру Левичеву: ” Теперь научимся конфигурировать устройства, работающие в сети SAF. Для начала сконфигурируем форвардеры для установления соседства друг с другом: А) роутеры находятся в одной подсети и возможно динамическое обнаружение друг друга router…
Здравствуйте, коллеги! В прошлом посте я представил вам своего ученика – Александра Левичева. Теперь же хочу опубликовать материал, который подготовил для вас Александр. Он расскажет о новой технологии, появившейся в 8м релизе CUCM и CME – о сети SAF, с помощью которой можно передавать телефонные маршруты между двумя IP АТС динамически. Материал опубликуем в двух…
Good morning! 🙂 Recently, at one of the courses, my students asked me the question – how to get rid of such a phenomenon as “slips” on the E1 links when connecting a Cisco gateway to another PBX or to PSTN? I would like to suggest a solution for everyone who faced a similar problem.…
Good day! 🙂 After another business trip to the branch, I can’t sleep in the morning 🙁 – a 3-hour time difference affects, and I decided not to waste time and write a new post. It will tell you how to register a third-party SIP phone on Call Manager Express (hereinafter referred to as CUCME…
Hello again, my dear colleagues! 🙂 Finally I got some time for another blog post. As always, there was a lot of work, despite the summer period, there was a business trip to our branch in Almaty, where I delivered my traditional Cisco voice courses. And, of course, there was a long-awaited vacation. 🙂 The…