Hi,
I am configuring a Cisco 2901 router with one BRI (WIC-1B-S/T-V3 module) and a PVDM3-16 daughter board to setup the ISDN link with a PBX (Alcatel-Lucent OmniPCX Office), for dial up data link.
Please, could anyone help me to find out if there's a HW limitation or if I should do something different?
The main question is: Can I change calls to use a bearer cap Speech or 3.1kHz and codec G.711 on this setup?
The PBX has a BRI interface (called BRA) that I managed to configure as network and the link is up between both equipment. The PBX has a PRI ISDN T2 connected to the PSTN, that will route the data calls originated by the 2901.
Router1 2901 w/ BRI -> PBX -> ISDN PSTN -> Router2
Apparently the PBX doesn't accept bearer capability as "unrestricted digital", because it returns a RELEASE_COMP right after the SETUP.
I've read that the WIC-1B-S/T-V3 is used for data calls and not voice, so it's maybe impossible to call as voice, but it seems to be the problem when calling, and I couldn't see another issue with the PBX T0 trace/debug or find a documentation about data over voice ISDN calls on the PBX documentation. I did call the PSTN with success using another PBX on the same PBX's BRI interface, but like I pointed before, using bearer cap as Speech. Also I've tried to follow this documentation to no avail: Configuring Data Over Voice (DoV) using isdn incoming-voice data and dialer voice-call (http://www.cisco.com/c/en/us/support/docs/dial-access/integrated-services-digital-networks-isdn-channel-associated-signaling-cas/14964-8.html).
I tried to change the layer 1 codec to G.711 but it seems not possible, because there's no voice-port interface to do that, and adding voice-call to the dialer doesn't work either..
test call
Test calls originated using isdn test, which returns RELEASE_COMP from the PBX.
isdn test call interface bri 0/2/0 [public_number | internal_pbx_extension]
debug
ISDN BR0/2/0 Q931: Sending SETUP callref = 0x0091 callID = 0x80A3 switch = basic-qsig interface = User
ISDN BR0/2/0 Q931: TX -> SETUP pd = 8 callref = 0x0091
Bearer Capability i = 0x8890
Standard = CCITT
Transfer Capability = Unrestricted Digital
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98380
Exclusive, Channel 0
Called Party Number i = 0x80, '5400'
Plan:Unknown, Type:Unknown
ISDN BR0/2/0 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x8091
Cause i = 0x81E4 - Invalid information element contents
The option "isdn sending-complete" didn't change the PBX response.
running config:
version 15.5
interface DialerB
description to NAME1
ip address 192.xxx.xxx.xxx 255.255.255.252
no ip redirects
no ip proxy-arp
encapsulation ppp
dialer pool 34
ppp authentication chap
ppp chap hostname HOSTNAMEA
no keepalive
no cdp enable
!
interface BRI0/2/0
description ISDN
no ip address
encapsulation ppp
dialer pool-member 34
isdn switch-type basic-qsig
isdn point-to-point-setup
no keepalive
ppp multilink
no cdp enable
!
Any help much appreciated.
Thanks.
