Есть IP Office 406 и 7 входящих линий, раскиданные примерно на 30 внутренних линий. Все входящие линии аналогое. Пользователи жалуются что при входящем звонке ужасное качество связи, при этом при исходящем звонке более менее.
Нет ли каких рекомендаций что и как подправить для улучшения ситуации? Спасибо
Входящие аналоговые линии
Модератор: Administrator
-
Павел Парамонов
- ACE
- Сообщения: 176
- Зарегистрирован: Пт 17 июн 2005, 17:00
- Откуда: Ланит
-
Гость
-
IT_NM
Прочтите IP Office Technical Tip
Tip no: 59
Release Date: 8 April 2005
Region: GLOBAL
особенно интересен абзац
As a result, Avaya would like to state that we can only guarantee compatibility with
Analog trunks that meet the required standards.
The objective for all trunks should be an NMSa Reading (dBrnc) of less than 20 dBrnc,
with a gain of -3.5 db within +/- 1dB.
Loop, or trunk noise of 21-30 dBrnc is marginal as 30 dBrnc is approached and requires
investigation and possible intervention by the service provider.
Noise above 30 dBrnc is unacceptable, and will almost certainly lead to issues like those
mentioned above – the service provider will need to investigate these trunks, and
provide a remedy.
It is recommended that for all new installations, or where the IP Office is replacing an
existing system, the customer should be advised to ask their service provider to check
the line noise and gain levels on their Analog trunks in order to confirm that the lines are
within the requirements.
Мы так и поступили - ругались с провайдером пока он не дал линии с лучшим качестом
Правда пришлось и номера поменять
Tip no: 59
Release Date: 8 April 2005
Region: GLOBAL
особенно интересен абзац
As a result, Avaya would like to state that we can only guarantee compatibility with
Analog trunks that meet the required standards.
The objective for all trunks should be an NMSa Reading (dBrnc) of less than 20 dBrnc,
with a gain of -3.5 db within +/- 1dB.
Loop, or trunk noise of 21-30 dBrnc is marginal as 30 dBrnc is approached and requires
investigation and possible intervention by the service provider.
Noise above 30 dBrnc is unacceptable, and will almost certainly lead to issues like those
mentioned above – the service provider will need to investigate these trunks, and
provide a remedy.
It is recommended that for all new installations, or where the IP Office is replacing an
existing system, the customer should be advised to ask their service provider to check
the line noise and gain levels on their Analog trunks in order to confirm that the lines are
within the requirements.
Мы так и поступили - ругались с провайдером пока он не дал линии с лучшим качестом
Правда пришлось и номера поменять