aryobaPremium,MVM
join:2002-08-22
kudos:1 | Building global voice network design For the sake of discussions, let's assume the following environments
* Call center
* Corporate/Enterprise
Based on what I gathered, following is list of exploration
* Having Avaya phone system to support call center since I heard that Avaya is best solution
* Having Cisco UCM to support corporate as Cisco is best solution
* Having SIP trunks to one or more providers
* Possibility of maintaining private MPLS backbone/cloud to support voice, video, and data with multicast and one VRF for each network
I'd like to hear what everyone's opinions and thoughts regarding the following.
1. Avaya vs Cisco
* What are the financial and technical reasons of having Avaya system to support call center and of having Cisco UCM to support corporate?
* How should technical intercommunication in place be assuming there are both Avaya and Cisco voice systems? Should there be SIP trunks between the two systems?
2. One vs Multiple providers
* Beside redundancy and cost saving, are there any other benefits of running SIP trunks with multiple providers compared to just run SIP trunk with single provider?
* What are the financial and technical challenges of integrating local provider and global providers specially when companies as client do not manage the providers' network?
* What are the financial and technical challenges of integrating two or more global providers specially when companies as client do not manage the providers' network?
* Which factors to look in selecting local or global SIP providers?
3. Voice Firewall
* What are benefits and challenges of having voice firewall?
* Is it wise to use Cisco ASA as voice firewall? I never see any real-life Juniper SRX firewall implementation as voice firewall so I'm unsure if Juniper SRX firewall is better option as voice firewall
* Any thoughts of Acme Packet firewall? Is it any good or else?
Thanks |
