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4 Advanced function
4.1 Call pickup
Call pickup is implemented by simulating pickup function of PBX. it‟s that,
when A calls B, B rings but no answer, at this moment, C can hook off and input
an appointed prefix plus B‟s number, pick up A‟s call and talk with A.
The following chart shows how to configure an appointed prefix in dial peer to
have call pick up function.
*1* means appointed prefix code. After making the above configuration, C can
dial *1* plus B‟s phone number to pick up A‟s call. User can set prefix in
random, in the case of no affecting current dialing rules.
4.2 Join call
When B is calling C, A can join in the existing call by inputting an appointed
prefix numbers plus B or C number, if B or C also supports join call.
The following chart shows how to configure an appointed prefix in dial peer to
have join call function.
*2* means appointed prefix code. After making the above configuration, A can
dial *2* plus B or C number to join B and C‟s call. User can set prefix in random,
in the case of no affecting current dialing rules.
4.3 Redial / Unredial
If B is in busy line when A calls B, A will get notice: busy, please hang up. If A
want to connect B as soon as B is in idle, he can use redial function at the
moment and he can dials an appointed prefix number plus B‟s number to realize
redial function.
What is redial function? A can‟t not build a call with B when B is in busy, then
A will subscribe B‟s calling mode at 60 second intervals. Once B is available, A
will get reminder of rings to hook off, while A hooks off, A will call B
automatically. If at this time A is occupied temporarily and unwilling to contact
B, A also can cancel the redial function by dialing an appointed prefix plus B‟s
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