One-way audio after changing destination-pattern

itsupportccsd · ‎07-21-2023

We were asked to change the "dial-out" number from 9 to 1.

Here's what we did:

In the gateway we changed the dial-peer destination-pattern from 9.T to 1.T

Then in the CUCM Administration GUI we changed the 9.xxxxxxxxxx route patterns to 1.xxxxxxxxxx

We can now make outbound calls using 1 but after the call connects, we can hear them but they can NOT hear us.

Internal calls are working just fine and when we receive external calls those work fine as well. It's just when we call an external number we can hear them but they can NOT hear us.

We have no idea what the issue is.

Roger Kallberg · ‎07-22-2023

Change to the dial string and one-way audio has no correlation with each other. There must be some other thing that comes into play here. If you share your router configuration we might be able to spot your issue. Do so in an attached text file and remove any sensitive information from it before you post it.

itsupportccsd · ‎07-22-2023

Thank you for your response. We have resolved MOST the issue.

We found a couple of items.

voice translation-rule 1
rule 1 /^911/ /911/
rule 2 /^9911/ /911/ --> we changed this to /^1911/ /911/
rule 3 /^9*/ // --> we changed this to /^1*/ //

The second thing we found was another dial-peer that had the following:

incoming called-number 9.T --> We changed this to 1.T

Now everything works except for when we call 911. When we call 911 we can hear the operator but the operator can NOT hear us.

copy of config attached.

Roger Kallberg · ‎07-22-2023

Try with adding these changes and additions to your configuration.

voice translation-rule 1
 no rule 1 /^911/ /911/
 no rule 2 /^1911/ /911/
 no rule 3 /^1*/ //
 rule 1 /^1\(.*\)/ /\1/
!
ip tftp source-interface GigabitEthernet0/0/0
!
voice service voip
 sip
  bind control source-interface GigabitEthernet0/0/0
  bind media source-interface GigabitEthernet0/0/0
!
voice class uri PSTN sip
 host ipv4:167.142.102.8
!
voice class e164-pattern-map 1
 description E164 Pattern Map for numbers on CM
 e164 <your numbers on CM>
 e164 <your numbers on CM>
 e164 <your numbers on CM>
 e164 <your numbers on CM>
 !add as many lines as you need 
!
voice class e164-pattern-map 2
 description E164 Pattern Map for calls to PSTN
 e164 1T
 e164 911
!
no dial-peer voice 212 voip
!
dial-peer voice 116 voip
 description Inbound CALLS from CUCM
 no destination-pattern .T
 no session server-group 116
 no incoming called-number 1.T
 incoming uri via ucm
 dtmf-relay rtp-nte sip-kpml
!
dial-peer voice 201 voip
 description Outbound CALLS to PSTN
 no incoming called-number .
 no destination-pattern 1.T
 destination e164-pattern-map 2
!
dial-peer voice 200 voip
 description Inbound CALLS from PSTN
 session protocol sipv2
 incoming uri via PSTN
 voice-class sip bind control source-interface GigabitEthernet0/0/1.4034
 voice-class sip bind media source-interface GigabitEthernet0/0/1.4034
 dtmf-relay rtp-nte
 codec g711ulaw
 no vad
!
dial-peer voice 110 voip
 description Outbound CALLS to CUCM
 session protocol sipv2
 session server-group 116
 destination e164-pattern-map 1
 voice-class sip bind control source-interface GigabitEthernet0/0/0
 voice-class sip bind media source-interface GigabitEthernet0/0/0
 dtmf-relay rtp-nte sip-kpml
 codec g711ulaw
 no vad