1 Reply Latest reply: Apr 23, 2012 11:42 AM by Brian Jonson RSS

    Help Bad call qaulity on Cisco gateway Incoming

    Treschen1

      Dear All please assist

       

      I work for a VOIP provider.

       

      We run asterisk, we have a customer who is has issues with incoming voice. For example when we call in to the customer he cannot hear us but i can hear him perfectly. Please assist me the customer conects to us via serial interface X.21 on a Cisco C2600 this is then linked to another cisco C2600 via ethernet which has a vwic card. See config below. From our cisco voip gateway the call goes to the customers avaya which then sends it to the avaya phones in the network

       

      On Cisco VOIP Gateway

       

      !

      controller E1 1/0

      framing NO-CRC4

      clock source internal

      pri-group timeslots 1-31

      !

      !

      !

      !

      !

      interface FastEthernet0/0 (THIS INTERFACE IS CONNECTED TO THE ROUTER WITH THE SERIAL X.21 CONNECTION)

      ip address 10.50.0.2 255.255.255.252

      duplex auto

      speed auto

      !

      interface FastEthernet0/1

      no ip address

      shutdown

      duplex auto

      speed auto

      !

      interface Serial1/0:15

      no ip address

      encapsulation hdlc

      isdn switch-type primary-net5

      isdn protocol-emulate network

      isdn incoming-voice voice

      no cdp enable

      !

      ip route 0.0.0.0 0.0.0.0 10.50.0.1

      !

      !

      ip http server

      no ip http secure-server

       

      !

      !

      control-plane

      !

      !

      !

      voice-port 1/0:15

      input gain 12

      output attenuation -6

      no comfort-noise

      !

      !

      !

      !

      !

      dial-peer voice 1 pots

      destination-pattern .T

      direct-inward-dial

      port 1/0:15

      forward-digits all

      !

      dial-peer voice 2000 voip

      description Local

      max-conn 15

      destination-pattern 0T

      progress_ind setup enable 3

      modem passthrough nse codec g711ulaw

      session protocol sipv2

      session target ipv4:10.1.1.3

      dtmf-relay rtp-nte

      codec g711ulaw

      fax-relay ecm disable

      fax rate disable

      ip qos dscp cs5 media

      ip qos dscp ef signaling

      no vad

      !

      dial-peer voice 4602 voip

      modem passthrough nse codec g711ulaw

      session protocol sipv2

      incoming called-number 4602

      codec g711ulaw

      fax-relay ecm disable

      fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw

      no vad

      !

      dial-peer voice 4600 voip

      incoming called-number 4600

      fax-relay ecm disable

      fax rate disable

      no vad

      !

      dial-peer voice 4601 voip

      incoming called-number 4601

      fax-relay ecm disable

      fax rate disable

      no vad

      !

      dial-peer voice 4603 voip

      incoming called-number 4603

      fax-relay ecm disable

      fax rate disable

      no vad

      !

      dial-peer voice 4604 voip

      incoming called-number 4604

      fax-relay ecm disable

      fax rate disable

      no vad

      !

      dial-peer voice 4605 voip

      incoming called-number 4605

      fax-relay ecm disable

      fax rate disable

      no vad

      !

      dial-peer voice 4606 voip

      incoming called-number 4606

      fax-relay ecm disable

      fax rate disable

      no vad

      !

      dial-peer voice 4607 voip

      incoming called-number 4607

      fax-relay ecm disable

      fax rate disable

      no vad

      !

       

      Asterisk config below:

       

      [Customer]

      accountcode=customer

      type=friend

      qualify=yes

      insecure=port,invite

      host=10.50.0.2

      echotraining=yes

      echocancel=yes

      dtmfmode=rfc2833

      disallow=all

      t38pt_udptl=yes,none

      context=customer

      canreinvite=no

      allow=alaw

      allow=ulaw

      allow=g729

      rtptimeout=60

      call-limit=15

      deny=0.0.0.0/0.0.0.0

      permit=10.50.0.2/255.255.255.255