MGCP Gateway With ISDN BRI interface
Hi Guys,
I have a voice gateway with a BRI card on slot 0/3/0 (port 0/1) and I wanted to terminate both WAN and PSNT connection to the same gateway with MGCP protocol, and as I'm new to voice over IP world can anyone suggest/recommand me a proper guide which includes the stepts and proper explanations to acheive this task.
Thank you
Regards,
Suthakar
Hi Aman,
As discussed please find the attached output as follows,
#sh isdn status
Global ISDN Switchtype = basic-net3
%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not apply
ISDN BRI0/0/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 1. Layer 3 output may not apply
ISDN BRI0/0/1 interface
dsl 1, interface ISDN Switchtype = basic-net3
L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 1 CCBs = 0
The Free Channel Mask: 0x80000003
ISDN BRI0/3/0 interface
dsl 12, interface ISDN Switchtype = basic-net3
Layer 1 Status:
ACTIVE
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 12 CCBs = 0
The Free Channel Mask: 0x80000003
%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 13. Layer 3 output may not apply
ISDN BRI0/3/1 interface
dsl 13, interface ISDN Switchtype = basic-net3
L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003
Layer 1 Status:
ACTIVE
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
--More-- Active dsl 13 CCBs = 0
The Free Channel Mask: 0x80000003
Total Allocated ISDN CCBs = 0
#sh ccm-manager
MGCP Domain Name: xxxxx.com
Priority Status Host
============================================================
Primary Registered x.x.x.x
First Backup None
Second Backup None
Current active Call Manager: x.x.x.x
Backhaul/Redundant link port: 2428
Failover Interval: 30 seconds
Keepalive Interval: 15 seconds
Last keepalive sent: 11:10:43 AEDST Nov 21 2013 (elapsed time: 00:00:11)
Last MGCP traffic time: 11:10:43 AEDST Nov 21 2013 (elapsed time: 00:00:11)
Last failover time: None
Last switchback time: None
Switchback mode: Graceful
MGCP Fallback mode: Enabled/OFF
Last MGCP Fallback start time: 05:28:32 AEDST Nov 18 2013
Last MGCP Fallback end time: 11:57:01 AEDST Nov 20 2013
MGCP Download Tones: Disabled
TFTP retry count to shut Ports: 2
Backhaul Link info:
Link Protocol: TCP
Remote Port Number: 2428
Remote IP Address: x.x.x.x
Current Link State: OPEN
Statistics:
Packets recvd: 3
Recv failures: 0
Packets xmitted: 5
Xmit failures: 0
BRI Ports being backhauled:
Slot 0, VIC 0, port 1
Slot 0, VIC 0, port 0
Slot 0, VIC 3, port 1
Configuration Auto-Download Information
=======================================
Current version-id: 1384908973-2cefe363-d1ae-423b-a6ef-a85a0d4216af
Last config-downloaded:00:00:00
Current state: Waiting for commands
Configuration Download statistics:
Download Attempted : 6
Download Successful : 3
Download Failed : 1
TFTP Download Failed : 8428
Configuration Attempted : 3
Configuration Successful : 3
Configuration Failed(Parsing): 0
Configuration Failed(config) : 0
Last config download command: New Registration
FAX mode: disable
Configuration Error History:
Regards,
Suthakar
Similar Messages
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No dialer command under ISDN BRI interface
Hi all,
I have a 2901 router voice bundle with 4 ISDN BRI ports and would like to have them bundled under Dialer1 interface. Unfortunately it doesn't give me option for Dialer command under BRI interface as expected.
router(config-if)#int bri0/0/0
router(config-if)#dia
router(config-if)#dia
^
% Invalid input detected at '^' marker.
router(config-if)#dialer
^
% Invalid input detected at '^' marker.
router(config-if)#
I assume it's down to the UC license installed on the device but not sure. Does the ISDN BRI interface behave in different way under this license?
Pasting portion of "show ver" as well.
Cisco CISCO2901/K9 (revision 1.0) with 479232K/45056K bytes of memory.
Processor board ID
2 Gigabit Ethernet interfaces
4 ISDN Basic Rate interfaces
1 terminal line
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
250880K bytes of ATA System CompactFlash 0 (Read/Write)
License Info:
License UDI:
Device# PID SN
*0 CISCO2901/K9
Technology Package License Information for Module:'c2900'
Technology Technology-package Technology-package
Current Type Next reboot
ipbase ipbasek9 Permanent ipbasek9
security None None None
uc uck9 Permanent uck9
data None None None
Configuration register is 0x2102Hi,
Snippet of "sh ver" with IOS version is below:
router#show ver
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.2(4)M5, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Fri 13-Sep-13 14:59 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)
router uptime is 2 days, 21 hours, 47 minutes
System returned to ROM by reload at 16:48:03 UTC Mon Aug 18 2014
System restarted at 16:50:01 UTC Mon Aug 18 2014
System image file is "flash0:c2900-universalk9-mz.SPA.152-4.M5.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command
The output of trying to type dialer command is in the initial post, I'm also pasting all available commands under bri0/0/0.
router(config-if)#int bri0/0/0
router(config-if)#?
Interface configuration commands:
aaa Authentication, Authorization and Accounting.
access-expression Build a bridge boolean access expression
arp Set arp type (arpa, probe, snap), timeout, log
options or packet priority
authentication Auth Manager Interface Configuration Commands
autodetect Autodetect Encapsulations on Serial interface
bandwidth Set bandwidth informational parameter
bgp-policy Apply policy propagated by bgp community string
bridge-group Transparent bridging interface parameters
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
clns CLNS interface subcommands
clock Configure serial interface clock
cwmp Configure CPE WAN Management Protocol(CWMP) on this
interface
dampening Enable event dampening
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
dot1q dot1q interface configuration commands
dot1x Interface Config Commands for IEEE 802.1X
down-when-looped Force looped serial interface down
encapsulation Set encapsulation type for an interface
ethernet Ethernet interface parameters
exit Exit from interface configuration mode
flow-sampler Attach flow sampler to the interface
full-duplex Configure full-duplex operational mode
h323-gateway Configure H323 Gateway
half-duplex Configure half-duplex and related commands
help Description of the interactive help system
history Interface history histograms - 60 second, 60 minute
and 72 hour
hold-queue Set hold queue depth
ip Interface Internet Protocol config commands
iphc-profile Configure IPHC profile
ipv6 IPv6 interface subcommands
isdn ISDN Interface configuration commands
isis IS-IS commands
iso-igrp ISO-IGRP interface subcommands
keepalive Enable keepalive
line-power Provide power on the line.
llc2 LLC2 Interface Subcommands
load-interval Specify interval for load calculation for an
interface
logging Configure logging for interface
loopback Configure internal loopback on an interface
mab MAC Authentication Bypass Interface Config Commands
mac-address Manually set interface MAC address
macro Command macro
metadata Metadata Application
mop DEC MOP server commands
mtu Set the interface Maximum Transmission Unit (MTU)
netbios Use a defined NETBIOS access list or enable
name-caching
network-clock-priority Configure clock source priority
no Negate a command or set its defaults
ntp Configure NTP
ospfv3 OSPFv3 interface commands
pulse-time Force DTR low during resets
rate-limit Rate Limit
redundancy RG redundancy interface config
routing Per-interface routing configuration
sdllc Configure SDLC to LLC2 translation
serial serial interface commands
service-policy Configure CPL Service Policy
shutdown Shutdown the selected interface
smds Modify SMDS parameters
snapshot Configure snapshot support on the interface
snmp Modify SNMP interface parameters
source Get config from another source
tarp TARP interface subcommands
timeout Define timeout values for this interface
topology Configure routing topology on the interface
transmit-interface Assign a transmit interface to a receive-only
interface
trunk-group Configure interface to be in a trunk group
tx-ring-limit Configure PA level transmit ring limit
vpdn Virtual Private Dialup Network
vrf VPN Routing/Forwarding parameters on the interface
waas WAN Optimization
router(config-if)# -
Isdn bri interface is used as backup by serial interface
backup delay 10 60
under bri interface following command is also configured
dialer idle-timeout 900
what will be idle timeout of bri interface if serial interface comes back and functional.Hello Jabbar,
this looks like a cisco BCRAN question, here it goes:
the backup delay 10 60 , means that it will take 10 seconds before the secondary link comes up, after the primary goes down, and it will take 60 seconds after the primary goes back up, before the secondary goes down.
dialer idle-timeout 900:
this command indicates how long the call can stay idle before it is disconnected.
from cisco:
"This command is used on lines for which there is no contention. When contention occurs, the dialer fast-idle command is activated. For example, when a busy line is requested to send another packet to a different destination than it is currently connected to, line contention occurs and the dialer fast-idle command is activated.
By default, this command applies to inbound and outbound calls. For example, if a receiving system needs to make outgoing calls, you might configure it with a short idle timeout.
Only packets that match the dialer group reset the idle timer."
So, I guess it would be 900s
HTH,
please rate this post if it does,
Vlad -
If I had 2 isdn routers on different sites and wanted them to connect, do I need to put both BRI interfaces on the same subnet or does it not matter with isdn ?
Hi
AFAIK there are 2 ways one is considering the isdn connectvitiy as a seperate point to point link and assigining a seperate /30 block for that connectivity or else you can also use ip unnunmbered option and make use of your ethernet ip or the loopback ip.
But i would suggest to go with the first option coz of the simplicity involved, also the second option may create or result in some operational problems if you have some routing protocol in place between your locations.
regds -
IDLE-TIMEOUT IN ISDN BRI INTERFACE
If bri isdn interface is backup by serial interface. Two commands are president for timeout bri interface
one under backup serial interface
1. backup delay 10 30
The other under bri interface
2. dialer idle-timeout 800
My query is when interface serial comes back what will be time bri interface to in the disconnect position 30 or 800.hi
AFAIK ideally the time would be 830 (30+800) coz the traffic will only get diverted back to serial interface after its observed stable for the configured time period which is 30 here.
Once it starts getting the traffic thru main serial interface the dialer interface will become idle..
so it will have to stay upto the timeout period (800 here)configured to get disconnected..
regds -
Set B Channel ID information to Preferred in MGCP Gateway
Hi All,
We recently had some E1 PRI issues and our Service Provider has asked us to set B Channel ID information to Preferred.
We are using a MGCP Gateway with CUCM 9.1.2
When we enable ISDN debug we could see the Channel ID as Exclusive.
Jul 25 13:02:07.566: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0043
Sending Complete
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98381
Exclusive, Channel 1
I tried to change it to Preferred by configuring the command, "isdn negotiate-bchan" under the serial interface but still debug shows it as Exclusive only.
Let me know whether we can change the B Channel information either in CUCM or MGCP Gateway.Hi
Can you try the below:-
1- interface x/x/x:15
isdn protocol-emulate network
isdn bchan-number-order ascending
then test again
2-Go to CUCM - gateway and do the below
CHANNEL IE TYPE " TIMESLOTS "
Thanks
please rate all useful information -
Hi All,
I recently purchased Cisco 2811 with ISDN BRI U HWIC for ISDN connectivity. Unfortunately, when I connect the card to my ISDN NT box, the light on the ISDN NT box keeps flashing signifying no connectivity, while there are no signs of light behind the HWIC card either. When I swapped this out with a normal ISDN BRI S/T card, I can see a steady light on the NT box and also light behind the HWIC on the router meaning there is connectivity between the router and the ISDN NT box.
A quick check on Cisco website shows that these type of cards require RJ-49C connector (see site below)
http://www.cisco.com/en/US/prod/collateral/modules/ps5949/data_sheet_c78_439537.html
Can someone be kind enough to let me know if/why normal RJ-45 cables cannot be used? Also, I am struggling to get information online on these RJ-49C connectors.
Thanks
AustinISDN needs proper cabling, not Ethernet cabling.
The pinour is in the product manual. -
Configuring BRI interface for Voice ( MGCP gateway
hi there,
i have a Call Manager which is connect to Cisco 2800 series acting as MGCP getway. ISDN connection between the 2800 and the carrier ( telestra sydney ). the call manager is seeing the gateway and i have configured a numbering plan on the call manager for the phones. the phones can call internally but externally i dont what configuration i should configure under the BRI interface for the carrier ( telestra ) to recongnise my number plan. please if you have any demo configuration or configuration that has perviously used post to me.this is a basic MGCP config on the Gateway on your area
BRI Switchtype Information
BRIs in Australia require no service profile identifiers (SPIDs).
There are two ISDN switch-types that can be used:
basic-net3?Currently the most commonly used.
basic-ts013?For older ISDN switches such as MicroLink.
isdn switch-type basic-net3 or 5
voice-card 2
dspfarm
dsp services dspfarm
controller T1 2/0
description T1 link to SRST
framing esf !--- Automatic method automatically adds
clock source internal
linecode b8zs !--- Automatic method automatically adds
cablelength short 133
pri-group timeslots 1-2,24 service mgcp !--- Automatic method
!--- automatically adds 24 channels.
!---You can manually edit channels.
description T1 link to SRST
interface Serial2/0:23
no ip address
isdn switch-type primary-ni !--- Automatic method automatically adds
isdn protocol-emulate network !--- Simulated Lab ISDN
isdn bind-l3 ccm-manager !--- Allows all Q931 to be backhauled over TCP to
!--- CallManager; automatic method automatically adds
no cdp enable !--- Automatic method automatically adds
ccm-manager mgcp
ccm-manager music-on-hold
ccm-manager config server 171.69.103.225
ccm-manager config !--- Enables automatic config download from CallManager
!--- Automatic method automatically adds these commands
mgcp
mgcp call-agent 171.69.103.225 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability sst-package
no mgcp package-capability fxr-package
mgcp package-capability pre-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
mgcp rtp payload-type g726r16 static
mgcp profile default -
Back to Back PRI with MGCP Gateways
I?ve got a 3825 with T1 voice modules (RJ45)..
They are configured as MGCP managed by a set of call managers.
On Friday, I have to integrate this gateway with an old Mitel switch, which will be used during a 2 year phased migration to get calls between old and new systems? To prepare for that, I have setup the T1s back to back for testing/validation that my MGCP config is working.
I can configure those T1s as ?T1 CAS? trunks, and put a crossover cable between them, make a route pattern 3.xxxx and have the call go out one T1, and back in the other, and it works great? The problem is that there?s no caller ID information set. In the trunk configuration screens, there are fields to specify that callerID should, or should not be sent, etc, but it just doesn?t go.. I?m not terribly surprised by this, because I don?t think there?s any protocol defined for the ?plain? T1 to transfer callerID.. I guess I was just hoping that somehow, it would work! :-)
What I would REALLY like to do, is to put these two T1s in PRI mode, since I *KNOW* a PRI can send callerID, but to do that, I have to have one of the ports emulate the CO-side switch.
When configured as PRI signalled T1s, I saw a pull-down that said something like ?Protocol Side? or ?Protocol Mode? (Sorry, it?s not configured as PRI right now, so I can?t look at the verbiage), and the selections were ?Network? and ?User?, which sound to me as if it?s EXACTLY what I need, but I couldn?t get it to come up to even test? It acted as if I had a timing issue, even though I hadn?t changed any timing parameters from the T1 CAS settings that worked (One internal, one external).. I was getting intermittent amber alarms, and the trunk never came up.
Unfortunately, I can only change the configs on this thing early in the morning, because yesterday, some of the MGCP control I was doing through the CM gui actually bounced their WAN T1s that are in the same router, so now I have to be careful!!
What I would like, is to get a definitive answer to whether two MGCP controlled T1s can be back to back in a PRI signaling mode, and/or if there?s another way to get callerID across a T1 link without one end of it being the CO itself. Ultimately, it won't be a cisco-cisco crossover, but rather a cisco-mitel solution, so whatever I come up with MUST be standards based, so at least I can have something to expect the Mitel engineer to be able to do..
Any help would be GREATLY appreciated!!!
-SteveSteve,
Never tried a back-to-back PRI with both routers being MGCP. I have in my lab two routers back to back with one router being edge voice gateway controlled by mgcp and the other being a pstn simulator. On the edge voice gateway the following configs exist.
controller t1 1/0
pri-group timeslots 1-24 service mgcp
ccm-manager mgcp
mgcp
mgcp call-agent
int s1/0:23
isdn switch-type
isdn incoming-voice voice
On the PSTN router (which emulates a PSTN switch)
controller t1 1/0
pri-group timeslots 1-24
int s1/0:23
isdn protocol-emulate network
isdn switch-type
isdn incoming-voice voice
This should work for back-to-back PRI pretty well. -
Remote C2901 MGCP gateway won't register with CUCM
Hi, all,
We have a central call manager, we are setting up a remote office with a C2901 voice gateway that has a T1 PRI, this gateway is being configured as a H.323 gateway, everything worked fine. Now I want to get SRST working such that when WAN goes down, employees can still make outbound calls and take inbound calls. I followed SRST documentations when configuring CUCM and C2901, I would say the documentations are clear and easy to follow -- only thing is there is no adequate explanation of why those commands need to be there and I can not get SRST to work.
1), First, a basic concept question, why do we need to configure "ccm-manager fallback-mgcp"? or any MGCP related configuration on C2901? how does MGCP play the role in SRST? the router is configured as a simple voice gateway, when WAN is intact, we use H.323 protocol, when WAN goes down, we still don't need MGCP ...
2), Assuming that we needed all those SRST related MGCP configuration, I would expect C2901 to register to call manager, but I could not get this device to register as a MGCP gateway, debug mgcp packets shows:
*Sep 5 16:52:47.571: MGCP Packet sent to 10.128.181.5:2427--->
RSIP 201356931 *@voicegw-remoteoffice.local.domain MGCP 0.1
RM: restart
<---
*Sep 5 16:52:47.631: MGCP Packet received from 10.128.181.5:2427--->
500 201356931
<---
I verified the domain name is exactly the same as the name configured on CUCM, I tried multiple time toggling ip domain name on C2901 also, somehow CUCM does not like RSIP message from C2901, I don't have knowledge to get debug information from CUCM side of why CUCM does not like the MGCP message sent by C2901
3), When the communication is blocked from C2901 to central call manager (by using a simple ACL on C2901's default gateway device), I can still make the inbound call to an IP phone, which means, phones were correctly registered to C2901 when communication to call manager is broken, but I can not make outbound call, phones always get quick busy beeps, test call from C2901 itself (by using "csim start") is fine, which means dial-plan and ISDN/PRI is fine.
I believe we are just doing very very basic configuration and this is a common scenario, what could I do wrong?You dont need the mgcp related commands if you are using H323. The commands that you need are:
application
global
service alternate default
call-manager-fallback (or) telephony-service and the relevant commands under it.
Also make sure that SRST reference has been added to the DP and the phones reset after the change made. This is what tell the phone to register to the SRST gateway when the WAN is down. The IP specified in the SRST reference should match whats configured under call-manager-fallback. -
Trouble adding second port BRI in a 2801 MGCP gateway
my config is CCM 413 with a 2801 SRST including a VIC2-2BRI .
I have configured the 2801 as MGCP gateway on the CCM, added the module VIC2-2BRI and configured the BRI 0/0/0 in this gateway.
this BRI work properly with the PSTN . I can make successfull call inbound and outbound
Now I want to add the second BRI (ie BRI 0/0/1 ) in the gateway for the same hunt group, the same PSTN provider.
When I do that this BRI can't register and make different kind of problem on the existing well working BRI.
for example I noticed that I can make inbound or outbound call with connected state but no voice in the two way.
I noticed also that the first BRI become completely blocked after two call.
I have verified the conf of the BRI 0/0/1 but i don't see any difference with the BRI 0/0/0 .
the only way to get back good working of the BRI 0/0/0 is to remove BRI 0/0/1 from the gateway conf.Hello,
That is a good news though. Can you please share to me the TAC case nr? So I can refer this to tAC. Because we have also opened a CASE for the same problem on the 3725 but not hear from TAC yet for the patch!
I got another image ie. IPVOICE version 12.4.1.9 from a friend that has the patch for this problem on the 2801 but there is no SPSERVICES image yet.
Now it looks that Cisco has a newer image.
Thanks in advance.
Regards -
i need your support to know model Router with BRI interface
The Cisco 876 (cheapest option) provides ADSL over ISDN
http://www.cisco.com/en/US/products/hw/routers/ps380/products_data_sheet0900aecd8028a976.html
For integrated ISDN BRI, I suggest looking at the 1800 Series
http://www.cisco.com/en/US/products/ps6184/index.html -
Problem connecting isdn bri voice interface to pstn
i'm trying to configure my ISDN BRI NT/TE voice interface card (VIC-2BRI-NT/TE) on router 3825 to link to my PSTN provider. This must allow my Cisco IP phones to pass call to the PSTN through my call manager 4.1.
I suscribe to two isdn line. The provider told me that the SWITCH TYPE is VN6 (COTE d'IVOIRE or Ivory Coast).
For my bri configuration, see file "interfaces configuration..."
My problem is that when i pass call from my Ip telephony network, the first call goes well. But after this first call, when i type the command isdn status, i can see that the layer 1 of my isdn interfaces are DEACTIVATED, and after a few minutes, it turn back to ACTIVE. During these minuite, i can't pass any call through my isdn interface.
for outputs of show isdn status command, and isdn debug q931 commands
see file "show isdn status and debug..."
Notice: when the status of the isdn layer is in the deactvated status, i can receive call from the pstn, but i can't passe call to pstn (the state changes to ACTIVE when incomming call from pstn arrive, but still stay DEACTIVATED when outgoing call is initiated)
Please help meI've entered the "isdn transition-delay 1" interface command and things seem to work well.According to the IOS help on my router,this command clears the ISDN D-CHANNEL after a delay of 1 second.
But i would like to get more information on this command, and also on the isdn layer 2 and 3 timers, and even possible on all the "isdn" interface command option.
THANKS -
Hello - we are trying to configure SRST on our T1 CAS MGCP gateway. We have been informed by a Cisco engineer that we cannot use SRST on a T1 CAS MGCP gateway and that the gateway must first be reconfigured as an H.323 gateway in order to implement SRST. Router is version 12.2(15)T14 and CCM 4.1 Any comments would be truly appreciated...thank you.
SRST doesn't support MGCP but does support MGCP to H.323 failback. You can still configure your router/CCM with MGCP then use the fallback commands for MGCP.
Looking at the SRST 4.0 system guide, page 42, T1 CAS is supported. With your version of IOS you would be running SRST 2.1, this is also supported.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/srst21/srstv21.pdf
http://www.cisco.com/univercd/cc/td/doc/product/voice/srst/srst40/srst40ad/s40sa.pdf
The ccm-manager fallback-mgcp command was added in IOS 12.2(11)T so it should be in your version. This is what you would need to do MGCP fallback to your H323 along with the call application alternate default.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123tcr/123tvr/vrht_c4.htm#wp1061367
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123tcr/123tvr/vrht_c1.htm#wp1670149
I would say it might be possible as I don't see anything saying no. Though remember MGCP fallback to H323 over SRST doesn't have call preservation.
Lastly here is a document on the SRST MGCP/H323 fallback.
http://www.cisco.com/en/US/tech/tk1077/technologies_configuration_example09186a008012ecc6.shtml
Please rate any helpful posts
Thanks
Fred -
Understanding ISDN BRI Voice Interface Cards
Hi all,
I was wondering about the VIC-2BRI-NT/TE VIC:
In NT mode, what kind of BRI interface I can connect to it? Is it a BRI S/T interface (The device that is been connected to it)?
I got a PBX that has BRI S/T interfaces... can i connect them to this card (while in NT state)?
Will DID work in this case?
Thanks,
Edy.Hi Malleyne,
Thanks for the response.
I looked at the document, and I found my answers indeed. The only way to understand from the document (or any other on the net) that it will connect to an S/T interface is by the fact is says it acts as a NT1 device. Couldn't they make it more simple? :)
Thanks again,
Edy.
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Hello, I'm experiencing some issues with Firefox 16.0.1 which I had also experienced with Firefox 15.0.1. On numerous occasions Firefox has crashed while attempting to access a website link contained in an AOL e-mail message. Unrelated to that issue,
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Why is my apple account deaktivated
My Apple account is deactivated. I cant update my apps or use Itunes. What to do???? Please
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How to implement redundancy with RT cFP?
Hi all! I have a setup with a cFP-2020 controling a pump and multiple switch valves. The controller runs a PID that regulates the flow. It also communicates with a pc through TCP/IP. A user can drive all the setup manualy ( opening/closing valves, ch