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Cisco 1861/1861E


Hi All

Hope someone can provide me the answer to this...

We are looking at purchasing a Ciso 1861(E) router for a very small Branch office, but we are not sure whether to go for the E version or not.

I have 2 questions, but cannot find the documents anywhere on the cisco site.

1. What is the latest version of Unity Express you can install on the 1861 Router? We run 8.0 on the NME CUE's round the rest of the company

2. Will the 1861E work with Communications 6.1.2

We need to make a decision as to which one to purchase, but Not had much like finding the answers.

Thanks in advance


2 Replies 2

paolo bevilacqua
Hall of Fame Master Hall of Fame Master
Hall of Fame Master

If you need a small voice system, have you considered the UC5x0 instead? The 1861 does not sell in big numbers.

Rob Huffman
Hall of Fame Community Legend Hall of Fame Community Legend
Hall of Fame Community Legend

Hi Simon,

Here are some good docs related to your questions

Table 13. Cisco Unity Express: Hardware Requirements for Cisco 1861

Cisco Unity Express Versions
Cisco 1861

Cisco Unity Express Compatibility Matrix

Q. What are the differences between the Cisco 1861 and Cisco 1861E?

A. The Cisco 1861E comes with default DRAM of 512MB compared to 256MB on the Cisco 1861. Also there is no Wireless LAN support on the Cisco 1861E.

Cisco 1861, 1861E Integrated Services Routers

Cisco SRST is   not dependent on Cisco CallManager versions, but phone loads.

Cisco Unified SRST 8.0 Supported Firmware, Platforms, Memory, and Voice Products



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