connecting T1 from PBX to 2800 router running CME

Answered Question
Mar 16th, 2010

I have T1 provided by the Telecom group to connect to Call Manager express,

Can i connect to a FXO card  or Wic T1 card

i have following hardware on the router

2 FastEthernet interfaces

1 Serial interface

2 Serial(sync/async) interfaces

1 terminal line

1 Virtual Private Network (VPN) Module

2 Voice FXO interfaces

2 Voice FXS interfaces

1 cisco service engine(s)

Thanks

Sri

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Correct Answer by Aaron Harrison about 6 years 10 months ago

Hi

Nope, you can connect a T1 to a T1. Not an FXO (a completely different technology) or a WIC (they don't support voice).

It has to be a voice T1 (i.e. for a 2800 series this would normally be a VWIC-1MFT-T1/E1 or VWIC2-1MFT-T1/E1 or the 2-port versions of these).

You also need DSPs - at least 24 channels, so a PVDM2-32 should cover the T1 and the four analog ports you have (unless you need more for transcoding, G729 calls, etc..).

Regards

Aaron

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Correct Answer
Aaron Harrison Tue, 03/16/2010 - 11:36

Hi

Nope, you can connect a T1 to a T1. Not an FXO (a completely different technology) or a WIC (they don't support voice).

It has to be a voice T1 (i.e. for a 2800 series this would normally be a VWIC-1MFT-T1/E1 or VWIC2-1MFT-T1/E1 or the 2-port versions of these).

You also need DSPs - at least 24 channels, so a PVDM2-32 should cover the T1 and the four analog ports you have (unless you need more for transcoding, G729 calls, etc..).

Regards

Aaron

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banalas_2 Tue, 03/16/2010 - 12:33

i have UC520  with the following configuration

will it be possible to connect

Cisco UC520-8U-4FXO-K9 (MPC8358) processor (revision 0x202) with 249856K/12288K bytes of m

emory.

Processor board ID FHK133975NA

MPC8358 CPU Rev: Part Number 0x804A, Revision ID 0x20

14 User Licenses

10 FastEthernet interfaces

2 terminal lines

4 Voice FXO interfaces

4 Voice FXS interfaces

1 Voice MoH interface

1 cisco service engine(s)

128K bytes of non-volatile configuration memory.

125440K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

REMoteCCME#sh ds

REMoteCCME#sh dspfarm

DSPFARM Configuration Information:

Admin State: DOWN, Oper Status: DOWN - Cause code: ADMIN_STATE_DOWN

Transcoding Sessions: 0(Avail: 0), Conferencing Sessions: 0 (Avail: 0)

Trans sessions for mixed-mode conf: 0 (Avail: 0), RTP Timeout: 600

Connection check interval 600 Codec G729 VAD: ENABLED

Thanks

Sri

Aaron Harrison Tue, 03/16/2010 - 12:37

Hi

I thought you had a 2800...???

As I understand it the UC series are fixed config, so no T1, no connection...

Aaron

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