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New Member

Can Cisco 3945 ISR support DS3 voice

Need to provision Voice Gateway for a Remote Site with

Bandwidth 45 Mbps and total Users 3-14

What VG should be selected and does T3/E3 the same as DS3/T3?

Regards

Sumit

8 REPLIES
New Member

Re: Can Cisco 3945 ISR support DS3 voice

Cisco 3945 ISR comes with NM-1-T3/E3, is this the same voice DS3(T3) and can it used for above mentioned requirement.

Thanks in advance

New Member

Re: Can Cisco 3945 ISR support DS3 voice

Deployment Model used is Centralised CallProcessing Model

WAN Connectivity is over MPLS

Remote Site, User Count is between 3 to 16 with Bandwidth 45 Mbps (Application like Video Conferencing could be there)

Cisco 2951 ISR comes with WAN Interface-NM-1 T3/E3

Note: Cisco T3/E3 Network Module provides performance requirements to deploy advanced, voice, video and data applications over the WAN.

Can this WAN Interface (NM-1 T3/E3) be used to provide WAN Connectivity between Central (HQ)Site and Remote Site if the Bandwidth Requiremnet is 45 Mbps?Please advice?

Thanks

Hall of Fame Super Gold

Re: Can Cisco 3945 ISR support DS3 voice

What do you mean with "voice gateway" ?

Do you have phone service from telco and if yes which exact interface ?

Cisco Employee

Re: Can Cisco 3945 ISR support DS3 voice

You need an AS5xxx to support a voice DS3.  The ISRs do not have any DS3 cards which support voice and the allocation of DSPs, to my knowledge.

Hall of Fame Super Gold

Re: Can Cisco 3945 ISR support DS3 voice

Steve is correct, on the other hand is probable that the OP actually asked about a regular router, not a T3 voice gateway,

New Member

Re: Can Cisco 3945 ISR support DS3 voice

Deployment Model used is Centralised CallProcessing Model

WAN Connectivity is over MPLS

Remote Site, User Count is between 3 to 16 with Bandwidth 45 Mbps (Application like Video Conferencing could be there)

Cisco 2951 ISR comes with WAN Interface-NM-1 T3/E3

Note: Cisco T3/E3 Network Module provides performance requirements to deploy advanced, voice, video and data applications over the WAN.

Can this WAN Interface (NM-1 T3/E3) be used to provide WAN Connectivity between Central (HQ)Site and Remote Site if the Bandwidth Requiremnet is 45 Mbps?Please advice?

Thanks

Cisco Employee

Re: Can Cisco 3945 ISR support DS3 voice

Yes, that card will allow for a data DS3.  You can send data, IP, VoIP traffic over the circuit.

What you can't do on the 3800 is terminate a voice DS3 (which is essentially a circuit containing 28 PRIs to a Telco for voice calls to/from the PSTN).  You need the AX5xxx for that, since the 2800 cannot terminate a voice DS3.

Hall of Fame Super Gold

Re: Can Cisco 3945 ISR support DS3 voice

You do not need a 2951 for DS3. A 2901 is enough.

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