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One-Direction Calls Between Cisco 1751 and Siemens Hicom 150E

sbuhero
Level 1
Level 1

Dear All,

I have several Cisco 1751 in Remote branches with only FXS ports and Cisco 1751 with VWIC-1MFT-E1 linked to Siemens Hicom 150E using E1 QSIG at HQ.

Remote FXS users can call one another and can also call any number behind PBX at HQ. However, PBX users can not call any of the Remote FXS numbers. This is what I describe as one direction call. Any known problem for this??? I have attached HQ Configs

The "debug voice ccapi inout" output is availlable on request.

3 Replies 3

vkapoor5
Level 5
Level 5

I think your configuration is Hub and Spoke type. Here, all your branch routers have one VoIP dial peer to connect to HQ and it's users behind PBX. But coming to remote to remote calls, there is no dial peer mentioned at branch routers to route the call. So, what you need to do is define VoIP dial peer for each other branch site at branch sites assuming your default gateway for branch routers is your HQ. Or else you can try option of IP-IP GW concept.

The configuration is not Hub & Spoke.In short we have Leased Lines through PSTN and there are no connectivity problems in the WAN setup.

Please note carefully that in the HQ Router configs there are dialpeers to branch routers FXS numbers as reprinted below:

!

dial-peer voice 4 voip

destination-pattern [7-8]..

session target ipv4:192.168.3.190

req-qos controlled-load

!

dial-peer voice 5 voip

destination-pattern [5-6]..

session target ipv4:192.168.3.182

req-qos controlled-load

!

Remember that the branch sites can call one another and can call any of the PBX numbers.

What fail are calls from PBX to remote FXS numbers like 5xx,6xx,7xx,8xx.

However, If I disconnect VWIC-1MFT-E1 & PBX and configure FXS card in the HQ router, bi-directional calls are established.

Please find the several debug outputs for a PBX user calling number 600 in 192.168.3.182

regochr2001
Level 1
Level 1

I can't see the attachment. I am testing situation with Siemens Hicom 3550 and Cisco 1760 router linked

with VWIC-1MFT-E1 using E1 Qsig at central site, and I also have a remote site, and I have communication in two directions. Have you configure voice dial peer for pots with port 1/0:15 and desired destination pattern?

I have also one problem. At central site I have FXO connectet to analog telephone line, and I want to make calls from PBX to public telephone network through FXO interface. I can make a call but waiting time is to long. I think I have to change some timers, but when I change timeouts interdigit on voice port nothing changes. Any sugesstions?