[cisco-voip] variable-length translation pattern

[daniele visaggio]

Always from the SRND:

[...] This does not mean that the urgent pattern has a higher priority than
> other patterns; the closest-match logic described in the section on Call
> Routing in Unified CM still applies.
>
> For example, assume the route pattern 1XX is configured as urgent and the
> pattern 12! is configured as a regular route pattern. If a user dials 123,
> Unified CM will not make its routing decision as soon as it receives the
> third digit because even though 1XX is an urgent pattern, it is not the
> best match (10 total patterns matched by 12! versus 100 patterns matched by
> 1XX). Unified CM will have to wait for inter-digit timeout before routing
> the call because the pattern 12! allows for more digits to be input by the
> user.
>

Both my translation patterns have urgent priority enabled, so this aspect
should not matter. I do not understand if 1XXX has higher priority than 1!
or viceversa, given 1234 as called number.


2014-12-09 16:09 GMT+01:00 Bill Talley <btalley at gmail.com>:

> I would think it will always match 1! because of the urgent priority
> setting.   Keep in mind the example you gave from the SRND list three
> different translation patterns.  The two you have are the same as far as
> the first two digits, no?
>
> Sent from an Apple iOS device with very tiny touchscreen input keys.
> Please excude my typtos.
>
> On Dec 9, 2014, at 5:59 AM, daniele visaggio <visaggio.daniele at gmail.com>
> wrote:
>
> Hi all,
>
> I have two translation pattern within the same partition (cucm 9.x).
>
> They are:
>
> 1XXX
> 1!
>
> When an incoming call from external sip gateway comes in with called
> number (say) 1234, the matched translation is 1!.
>
> At first, I thought that 1!, being less specific than 1XXX, should not
> being matched.
>
> Reading through Cisco Collaboration System 9.x Solution Reference Network
> Designs (SRND)
> <http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab09/clb09/dialplan.html>,
> I saw this:
>
> When determining the number of matched strings for a variable-length
>> pattern, Unified CM takes into account only the number of matched strings
>> that are equal in length to the number of digits dialed. Assuming a user
>> dials 1311 and we have patterns 1XXX, 1[2-3]XX, and 13!, the following
>> table shows the number of matched strings of these potentially matching
>> patterns....*In this example the variable-length pattern 13! is selected
>> as the best match*.
>
>
> Changing temporarily the translation pattern with a leading # and then
> going back to the original form, the pattern 1XXX started to be matched.
>
> What do you think, guys? is this a bug or are 1! and 1XXX equal-precision
> matches from cucm point of view?
>
> Thank you
>
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