[cisco-voip] Post-dial Delay - two H.323 gateways with E1 interface

[Nick Matthews]

e1r2 is a slow signaling method (the slowest, actually).  If you're
not dialing a 9# number, and you are dialing one of the 8... numbers,
it doesn't look like anything on the router is causing it.  You would
have to get some debugs and look at the time stamps to decode what's
going on with more detail than that.

-nick

On Mon, Nov 23, 2009 at 9:29 AM, Gustavo Rodrigues Ramos
<gustavo at nexthop.com.br> wrote:
> Hi Jorge, thanks for your reply, but I don't think this is the case
> since from the PSTN to the extensions the two dial-peers are pretty
> much straightforward (destination-pattern 8... on both gateways).
>
> Gustavo.
>
>
> On Mon, Nov 23, 2009 at 12:15 PM, Jorge L. Rodriguez Aguila
> <jorge.rodriguez at netxar.com> wrote:
>> As Dennis said, to eliminate the pause, create dial peers with more exact patterns.
>>
>>
>> Jorge Rodriguez, CCVP, CRMCS
>> Senior Voice/Data Consultant
>> Netxar Technologies
>> PCS 7876888530
>> jorge.rodriguez at netxar.com
>>
>>
>>
>>
>> -----Original Message-----
>> From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Dennis Heim
>> Sent: Monday, November 23, 2009 9:58 AM
>> To: Gustavo Rodrigues Ramos; cisco-voip at puck.nether.net
>> Subject: Re: [cisco-voip] Post-dial Delay - two H.323 gateways with E1 interface
>>
>> Whenever you a T in your destination-pattern you will get your interdigit timeout.
>>
>> Dennis Heim
>> Network Voice Engineer
>> CDW  Advanced Technology Services
>> 11711 N. Meridian Street, Suite 225
>> Carmel, IN  46032
>>
>> 317.569.4255 Office
>> 317.569.4201 Fax
>> 317.694.6070 Cell
>> dennis.heim at cdw.com
>> www.berbee.com
>>
>>
>> -----Original Message-----
>> From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Gustavo Rodrigues Ramos
>> Sent: Monday, November 23, 2009 12:16 AM
>> To: cisco-voip at puck.nether.net
>> Subject: [cisco-voip] Post-dial Delay - two H.323 gateways with E1 interface
>>
>> Hello,
>>
>> I've configured a very simple H.323 environment. Two Cisco 2811 (IOS
>> 12.4(15)T) as H.322 gateways with one E1 (CAS R2) interface each.
>> There is a PBX connected to the first gateway (through the E1
>> interface) and the other one is connected to the PSTN. Everything looks good (calls are following from the PBX to the PSTN and vice-versa), however there is a 15 seconds post-dial delay that I couldn't fix.
>>
>> I've tried to change the DTMF, H.323 and voice-port inter-digit timeout with no change in the post-dial delay... I suspect that this is related to the H.323 connection or codec negotiation, but can't tell for sure. The below configuration is what I'm using in both gateways.
>>
>> If anyone can point me to a direction, I would really appreciate.
>>
>> Thanks in advance,
>> Gustavo.
>>
>>
>>
>> !
>> voice class codec 1
>>  codec preference 1 g729r8
>> !
>> voice class h323 1
>>  h225 timeout tcp establish 3
>>  h225 timeout setup 3
>>  call start fast
>> !
>> controller E1 0/2/0
>>  framing NO-CRC4
>>  ds0-group 0 timeslots 1-15,17-21 type r2-digital r2-compelled ani  cas-custom 0
>>  country brazil use-defaults
>>  metering
>>  category 2
>>  answer-signal group-b 1
>>  dtmf timer inter-digit 250
>> !
>> !
>> !
>> voice-port 0/2/0:0
>>  cptone BR
>>  timeouts initial 1
>>  timeouts interdigit 2
>>  music-threshold -60
>> !
>> !
>> !
>> dial-peer voice 2 pots
>>  description CONNECTED to PSTN
>>  destination-pattern 9#T
>>  progress_ind alert enable 8
>>  progress_ind progress enable 8
>>  direct-inward-dial
>>  port 0/2/0:0
>> !
>> dial-peer voice 11 voip
>>  description CALL LEG TO OTHER GATEWAY
>>  destination-pattern 8...
>>  translate-outgoing called 99
>>  voice-class codec 1
>>  voice-class h323 1
>>  session target ipv4:192.168.x.x
>>  dtmf-relay h245-alphanumeric
>>  fax protocol cisco
>> !
>> !
>> gateway
>>  timer receive-rtp 1200
>> !
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