When the zaptel-modules package was compiled and installed, a number of extra modules were added to the running kernel, such as ztdummy. Set the country-code for the tonezone entries in zaptel. AMI was often used in early pulse-code modulation PCM networks and is still used in older multiplexing equipment today. This is in addition to SIP calls for extension The options used here are:.

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Set the country-code for the tonezone entries in zaptel. Sets a dial plan parameter.

Asterisk: ISDN BRI support with a Cologne Chip HFC-S PCI card

Allows multiple channels to be treated as one for isnd calls, in which case the first available channel will always be used. This was described in the previous article. 2bd0s this example, the ZAP channel is only used for outgoing calls if extension is dialled. This is also why it is necessary to specify a line coding scheme for the B-channels. The name of this extension is arbitrary. Although the command may be followed by specific sidn numbers, by default ztscan prints out information on all available spans.

It builds on a previous article, Asterisk: Prevents international calls from being missed because the dial plan is missing a variation of the phone number associated with this channel that includes two leading zeros follow by the country code and the area code.

It can also be used to combine two 64 kbps data connections to form a isdnn kbps connection, but this has become less interesting since the advent of cheap, broadband Internet access. Not that this support can be described as particularly reliable, but it can certainly be regarded as adequate for most personal needs.


Among other things, this shows that the card is being run by vzaphfc ; one of a number of kernel modules that are shown to be loaded by the lsmod command:. For all other numbers the catch-all rule will apply and the SIP channel will be used.

One of them is the Zap channel module that allows Asterisk to communicate with the Zaptel device driver. In countries where the telco decided long ago to use some unusual version of this protocol, many popular telephony solutions various SIP adapters, Asterisk, etc.

The main selling points of ISDN BRI are its increased connection quality, faster dialing, its ability hc-s connect up to seven devices and carry two calls simultaneously, including three-way conference calls.

A span is a logical unit that represents a group of channels. Sets the default tonezone to specify which country’s indication tones should be used if nothing else is defined. Integrated Services Digital Network. When an incoming call reaches this rule and matches extension spa sequence of two events is triggered, starting with the Dial application, which is used to connect together all of the various channel types in Asterisk.

AMI was often used in early pulse-code modulation PCM networks and is still used in older multiplexing equipment today.

Internal ISDN cards?

Asterisk has its own set of modules that, among other things, support the various channel types. In this case the command is:.


This system has only one such card with a single port, so it is referred to as span 1. Although it does not include an integrated NT1 as might be desired for use in North America, it is capable of operating in NT mode, which allows it to communicate directly with other ISDN user devices with a crossed cable.

When an incoming call reaches this rule and matches extension numberthe Goto application sends control of the current channel to extension sp with hf-s 1. Retrieve some diagnotic information regarding the new card and its status.

It may be a little confusing, but the above command also works for BRI spans. It may contain many channel definitions, although only one is included here. The installation procedures below assume that an HFC-S PCI card has already been installed and that both the operating system and Asterisk are up and running. The type here is digital as opposed to analog, which is also possiblewhile the status is “active” with alarms “OK.

Multiple lines like this can be 2gds0, each for a different tonezone. Once the new dial plan has been saved, submit the changes to the running Asterisk process with this command:. Two things can be done to fix these problems.