[cisco-voip] SRST Question

[Andrew Dignan]

> Also, is there a easy way to for a router in fallback
> to forward calls to a # and go into a VM box for this
> site without having a DID allocated at the head end?

Since you've got a PRI, you need to see about having your provider accept
RDNIS from your site. You then need to configure CallManager Gateway with
this checkbox checked "Redirecting Number IE".  Unity uses the Redirecting
Number to determine which mailbox to dump the call to.  Just contact your
carrier and see if if they both support RDNIS.  If so your in luck, just
send RNA'd calls to the head number that goes right into Unity Main
greeting, Unity will see RDNIS in PRI information and send caller into
that extension mailbox....otherwise if you cannot do that, then there was
an enhancement for later IOS code, CSCdy20913, that can allow the extra
dtmf tones to go through:

Enhanced CLI
============
Mode:
dial-peer voice
Enhanced CLI Syntax:
forward-digits extra [inband]
where inband is the new option. It only works
for ISDN interface.
Specification:
Add an option "inband" to CLI "forward-digits extra"
so that ISDN interface can also forward extra digits inband using DTMF done.
This is used by SRST/CME vm integration.

Examples:
=========
Router-2015(config)#dial-peer voice 100 pots
Router-2015(config-dial-peer)#forward-digits ?
<0-32> number of right-justified dialed digits to be forwarded
all forward all destination digits
extra extra dialed digits to be forwarded

Router-2015(config-dial-peer)#forward-digits extra
inband digits to be forwarded inband
<cr>

Router-2015(config-dial-peer)#forward-digits extra inband ?
<cr>

Router-2015(config-dial-peer)#forward-digits extra inband
Router-2015(config-dial-peer)#end

Regards,

- andy
Berbee


> Hi,
>
> I am wondering if there is a timer I can set to get a
> call forward to a PSTN Number to work after a IP Phone
> in fallback rings 4-5 times but does not answer.
>
> If the phone is in use, the forward to the external
> PSTN # works fine since there is no delay.
>
> But when phone is not in use, call comes in PRI to
> main # and when in fallback goes to a IP phone and it
> rings 4 or 5 times then it forwards to PSTN # for head
> end location VM and I see the outbound ISDN call setup
> then I hear a busy signal. Cause code is normal call
> clearing.
>
> Any ideas?
>
> Also, is there a easy way to for a router in fallback
> to forward calls to a # and go into a VM box for this
> site without having a DID allocated at the head end?
>
>
>
>
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