By Colman Carpenter; Ian Plain; Jared Smith; Philippe Lindheimer; et al
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Additional resources for Asterisk 1.4 : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions
Though typing dialplan show will always show the switch statement at the bottom, the defined context on the remote system is searched after the local context on your system and before any local included contexts! So again, you have to be very careful as to what is the context on the remote system as this will be searched before your included contexts. conf file, and the context is, of course, in the server's dialplan. Com This material is copyright and is licensed for the sole use by Anna Indahl on 12th August 2009 PSC 94 Box 361, , APO, , 09824 Chapter 1 Why use contexts?
This is a fast and easy change, which will have no effect on other shop floor users. Com This material is copyright and is licensed for the sole use by Anna Indahl on 12th August 2009 PSC 94 Box 361, , APO, , 09824 The Dialplan And to the change to 0870 numbers, this once again can be put into effect very simply. The only change is that evening and weekend calls are now free. Therefore, we could put it into a [free] context. Although, it isn't always free. It is free only at weekends which would not be suitable.
Bad echo makes it very difficult to concentrate on a conversation. Another downside of high latency is that not all IP phones cope well with it, although some do better than others. For example, experience has shown Linksys phones to be good in distributed installations. Others will fail to register overtime and therefore go off-line. This isn't always immediately obvious, either leading to the potential for important calls to go straight to voicemail, or even be lost altogether. Do your homework Coming back to the customer's network, how do we ensure that it will carry the expected voice traffic without excessive latency or jitter, and with adequate availability?
Asterisk 1.4 : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions by Colman Carpenter; Ian Plain; Jared Smith; Philippe Lindheimer; et al