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New Member

E1 connection between PBX and Router

Hi,

I have connected Erricsson MD110 with E1PRI card and Cisco 3660 with NM-HDV-1E1-30=,Single-Port 30 Channel E1 Voice/Fax Network Module using Qsig.

The problem is that out of 30 channels only 15 are working (1-15). Both PBX and 3660 shows all channels are active. Is there any command to enable high density voice?

Pl. advice.

Suneel jain

4 REPLIES
New Member

Re: E1 connection between PBX and Router

This URL might help - In Particular Last item page 2. It looks like the signalling channel is getting in the way.

http://www.cisco.com/application/pdf/en/us/guest/products/ps278/c1237/ccmigration_09186a00800e762e.pdf

New Member

Re: E1 connection between PBX and Router

Thanks for the info. I removed "isdn contiguous-bchan" cmd and it worked.

Thansk again,

Suneel jain

New Member

Re: E1 connection between PBX and Router

Hi Suneel,

I may be off on this but check if you are using codec complexity of high or medium. Here is some info that I have copied and pasted here: When reading, note that PVDM 12 can be used for up to 12 calls.

In high-complexity codec mode, up to six voice or fax calls can be completed per PVDM-12, using the following codecs: G.711, G.726, G.729, G.729 Annex B, G.723.1, G.723.1 Annex A, G.728, and fax relay.

In medium-complexity codec mode, up to 12 voice or fax calls can be completed per PVDM-12, using the following codecs: G.711, G.726, G.729 Annex A, G.729 Annex B with Annex A, and fax relay.

Let me know if this works.

Regards,

Re: E1 connection between PBX and Router

Hi Suneel

Can you answer me or write a e-mail to dubravko@storm.hr.

I have the same situation like you, but i have problems with callback and dialing missed call.

Is that works fine with you?

Thanks

Dubravko

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